Costas was born in Queens, New York City, and grew up in Commack, New York. He is the son of Jayne (Quinlan), of Irish descent, and John George Costas, an electrical engineer of Greek descent. His father's ancestry can be traced back to the island of Kalymnos in the Aegean Sea in Greece.
He graduated from Commack High School South and attended Syracuse University, Syracuse, New York. In 1973, he began his professional career at WSYR TV and Radio in Syracuse, while still completing his Communications degree at the S.I. Newhouse School of Public Communications. After graduating in 1974, he joined KMOX Radio in St. Louis, Missouri.
In 2001, Syracuse University honored Costas with the George Arents Award, SU’s highest alumni honor, for Excellence in Sports Broadcasting. In 2013, the S.I. Newhouse School of Public Communications honored him with the first Marty Glickman Award for Leadership in Sports Media.
Costas' sportscasting career began while attending Syracuse University, serving as an announcer for the Syracuse Blazers minor-league hockey team playing in the Eastern Hockey League and North American Hockey League.
At age 22, he went to KMOX, calling play-by-play for the Spirits of St. Louis of the American Basketball Association in 1974. Later he would call Missouri Tigers basketball and co-host KMOX's Open Line call-in program.
He was a prominent contributor to the ABA book Loose Balls: The Short, Wild Life of the American Basketball Association. He is extensively quoted on many topics. The book includes his reflections of ABA life during his tenure as radio voice of the Spirits of St. Louis.
Costas later did play-by-play for Chicago Bulls broadcasts on WGN-TV during the 1979–1980 NBA season. He was also employed by CBS Sports as a regional CBS NFL and CBS NBA announcer from 1976 to 1979, after which he moved to NBC.
When Costas was hired by NBC, Don Ohlmeyer, who at the time ran the network's sports division, told the then 28-year-old Costas that he looked like a 14-year-old. Costas would recite this anecdote during an appearance on Late Night with Conan O'Brien. Ohlmeyer based his reaction on Costas's modest stature (Costas is 5'3"in height) and boyish, baby-faced appearance.
For many years, Costas hosted NBC's National Football League coverage and NBA coverage. He also did play-by-play for National Basketball Association and Major League Baseball coverage.
With the introduction of the NBC Sports Network, Costas also became the host of the new monthly interview program Costas Tonight.
On March 30, 2015, it was announced Costas would join forces with Marv Albert (blow-by-blow) and Al Michaels (host) on the April 11, 2015 edition of NBC's primetime PBC on NBC boxing series. Costas was added to serve as a special contributor for the event from Barclays Center in Brooklyn. He would narrate and write a feature on the storied history of boxing in New York City.
He has also hosted NBC's coverage of the U.S. Open golf tournament.
For baseball telecasts, he teamed with Sal Bando (1982), Tony Kubek (from 1983 to 1989), and Joe Morgan and Bob Uecker (from 1994 to 2000).
One of his most memorable broadcasts occurred on June 23, 1984 (in what would go down in baseball lore as "The Sandberg Game"). Costas, along with Tony Kubek, was calling the Saturday baseball Game of the Week from Chicago's Wrigley Field. The game between the Chicago Cubs and St. Louis Cardinals in particular was cited for putting Ryne Sandberg (as well as the 1984 Cubs in general, who would go on to make their first postseason appearance since 1945) "on the map". In the ninth inning, the Cubs, trailing 9–8, faced the premier relief pitcher of the time, Bruce Sutter. Sandberg, then not known for his power, slugged a home run to left field against the Cardinals' ace closer. Despite this dramatic act, the Cardinals scored two runs in the top of the tenth. Sandberg came up again in the tenth inning, facing a determined Sutter with one man on base. Sandberg then shocked the national audience by hitting a second home run, even farther into the left field bleachers, to tie the game again. The Cubs went on to win in the 11th inning. When Sandberg hit that second home run, Costas said, "Do you believe it?!" The Cardinals' Willie McGee hit for the cycle in the same game.
While hosting Game 4 of the 1988 World Series between the Los Angeles Dodgers and Oakland Athletics on NBC, Costas angered many members of the Dodgers (especially the team's manager, Tommy Lasorda) by commenting before the start of the game that the Dodgers quite possibly were about to put up the weakest-hitting lineup in World Series history. That comment ironically fired up the Dodgers' competitive spirit. Later (while being interviewed by NBC's Marv Albert), after the Dodgers had won Game 4 (en route to a 4–1 series victory), Lasorda sarcastically suggested the MVP of the 1988 World Series should be Bob Costas.
Besides calling the 1989 American League Championship Series for NBC, Costas also filled-in for a suddenly ill Vin Scully, who had come down with laryngitis, for Game 2 of the 1989 National League Championship Series alongside Tom Seaver. Game 2 of the NLCS took place on Thursday, October 5, which was an off day for the ALCS. NBC then decided to fly Costas from Toronto to Chicago to substitute for Scully on Thursday night. Afterward, Costas flew back to Toronto, where he resumed work on the ALCS the next night.
Bob Costas anchored NBC's pre- and post-game shows for NFL broadcasts and the pre and post-game shows for numerous World Series and Major League Baseball All-Star Games during the 1980s (the first being for the 1982 World Series). Costas did not get a shot at doing play-by-play (as the games on NBC were previously called by Vin Scully) for an All-Star Game until 1994 and a World Series until 1995 (when NBC split the coverage with ABC under "The Baseball Network" umbrella), when NBC regained Major League Baseball rights after a four-year hiatus (when the broadcast network television contract moved over to CBS, exclusively). It was not until 1997 when Costas finally got to do play-by-play for a World Series from start to finish. Costas ended up winning a Sports Emmy Award for Outstanding Sports Personality, Play-by-Play.
In 1999, Costas teamed with his then-NBC colleague Joe Morgan to call two weekday night telecasts for ESPN. The first was on Wednesday, August 25 with Detroit Tigers playing against the Seattle Mariners. The second was on Tuesday, September 21 with the Atlanta Braves playing against the New York Mets.
When NBC gained the NBA network contract from CBS in 1990, Costas hosted the telecasts and was teamed in the studio with ex-Lakers coach Pat Riley. He also hosted the studio program Showtime and did play-by-play for the 1991 All-Star Game. In 1997, Costas began a three-year stint as the lead play-by-play man for The NBA on NBC. Costas teamed with Isiah Thomas and Doug Collins for NBA telecasts (from 1997 to 2000).
NBC enlisted Costas' services after they were forced to (temporarily) remove Marv Albert from their broadcasts due to lingering personal and legal problems at the time. Costas stepped aside following the 2000 NBA Finals in favor of a returning Marv Albert. Costas returned to call some games of the 2002 NBA Playoffs after Albert was injured in a car accident two days before the playoffs.
While this, in essence, ended his active role on the NBA on NBC program (by this point, Hannah Storm and briefly Ahmad Rashād had replaced Costas on studio anchoring duties), Costas would return to do play-by-play for selected playoff games. Costas also co-anchored (with Hannah Storm) NBC's NBA Finals coverage in 2002, which was their last to-date (before the NBA's network television contract moved to ABC).
NBC Sports allowed Costas to opt out from having to cover the XFL. He publicly denigrated the league throughout its existence and remains a vocal critic of the league and its premise.
In 2006, Costas returned to NFL studio hosting duties for NBC's new Sunday Night Football, hosting its pre-game show Football Night in America. Costas last hosted NFL telecasts for NBC in 1992 before being replaced in the studio by Jim Lampley and subsequently, Greg Gumbel. Before becoming the studio host for The NFL on NBC in 1984, Costas did play-by-play of NFL games with analyst Bob Trumpy.
Costas is nicknamed "Rapping Roberto" by New York City's Daily News sports media columnist Bob Raissman. Al Michaels also called him "Rapping Roberto" during the telecast between the Indianapolis Colts and the New York Giants on September 10, 2006, in response to Costas calling him "Alfalfa".
Costas hosted NBC's coverage of the 2008, 2009, and the 2010 NHL Winter Classic. He was scheduled to host coverage of the 2011 event as well but, due to the game's postponement, Costas only hosted pre-game coverage before leaving to go to Seattle for his duties with NBC's NFL coverage the next night. He hosted the event in 2012 as well as a post-game edition of NHL Live on the NBC Sports Network.
Costas has frontlined many Olympics broadcasts for NBC. They include the Olympics in Barcelona in 1992, Atlanta in 1996, Sydney in 2000, Salt Lake City in 2002, Athens in 2004, Torino in 2006, Beijing in 2008, Vancouver in 2010, London in 2012, Sochi in 2014 and Rio in 2016. He discusses his work on the Olympic telecasts extensively in a book by Andrew Billings entitled Olympic Media: Inside the Biggest Show on Television. A personal influence on Costas has been legendary ABC Sports broadcaster Jim McKay, who hosted many Olympics for ABC from the 1960s to the 1980s.
During the 1992 Barcelona and 1996 Atlanta Opening Ceremonies, Costas's remarks on China's teams' possible drug use caused an uproar among the American Chinese and international communities. Thousands of dollars were raised to purchase ads in The Washington Post and Sunday The New York Times, featuring an image of the head of a statue of Apollo and reading: "Costas Poisoned Olympic Spirit, Public Protests NBC". However, Costas' comments were made subsequent to the suspension of Chinese coach Zhou Ming after seven of his swimmers were caught using steroids in 1994. Further evidence of Chinese athletes' drug use came in 1997 when Australian authorities confiscated 13 vials of Somatropin, a human growth hormone, from the bag of Chinese swimmer Yuan Yuan upon her arrival for the 1997 World Swimming Championships. At the World Championships, four Chinese swimmers tested positive for the banned substance Triamterene, a diuretic used to dilute urine samples to mask the presence of anabolic steroids. Including these failed drug tests, 27 Chinese swimmers were caught using performance-enhancing drugs from 1990 through 1997; more than the rest of the world combined.
Along with co-host Meredith Vieira and Matt Lauer, Costas' commentary of the 2012 Summer Olympics Opening Ceremonies came under fierce criticism, with Costas being described as making "a series of jingoistic remarks, including a joke about Idi Amin when Uganda's team appeared" and the combined commentary as being "ignorant" and "banal".
Following the Olympics, Costas appeared on Conan O'Brien's talk show and jokingly criticized his employer for its decision to air a preview of the upcoming series Animal Practice over a performance by The Who during the London closing ceremonies. "So here is the balance NBC has to consider: The Who, 'Animal Practice.' Roger Daltrey, Pete Townshend – monkey in a lab coat. I'm sure you'd be the first to attest, Conan, that when it comes to the tough calls, NBC usually gets 'em right," Costas said, alluding at the end to O'Brien's involvement in the 2010 Tonight Show conflict.
An eye infection Costas had at the start of the 2014 Winter Olympics forced him, on February 11, 2014, to cede his Olympic hosting duties to Matt Lauer (four nights) and Meredith Vieira (two nights), the first time Costas had not done so at all since the 1998 Winter Olympics (as rights were not held by NBC).
Since 2001, Costas has co-hosted the Kentucky Derby.
In 2009, he hosted Bravo's coverage of the 2009 Kentucky Oaks.
On February 9, 2017, Costas announced during Today that he had begun the process of stepping down from his main on-air roles at NBC Sports, announcing in particular that he would cede his role as primetime host for NBC's Olympics coverage to Mike Tirico (who joined the network from ESPN in 2016), and that he would host Super Bowl LII as his final Super Bowl.
USA Today reported that he would similarly step down from Football Night in America in favor of Tirico. Costas explained that he was not outright retiring and expected to take on a role at NBC Sports similar to that of Tom Brokaw, being an occasional special correspondent to the division. He explained that his decision "opens up more time to do the things that I feel I'm most connected to, there will still be events, features, and interviews where I can make a significant contribution at NBC, but it will also leave more time for baseball (on MLB Network), and then, at some point down the road, I'll have a chance to do more of the long-form programming I enjoy." Costas told USA Today that his gradual retirement was planned in advance, and that he did not want to announce it during the 2016 Summer Olympics or the NFL season because it would be too disruptive, and joked that "I'm glad that Sochi wasn’t the last one. You wouldn't want your pink-eye Olympics to be your last Olympics."
Costas also hosted the syndicated radio program Costas Coast to Coast from 1986 to 1996, which was revived as Costas on the Radio. Costas on the Radio, which ended its three-year run on May 31, 2009, aired on 200 stations nationwide each weekend and syndicated by the Clear Channel owned Premiere Radio Networks. During that period, Costas also served as the imaging voice of Clear Channel-owned KLOU in St. Louis, Missouri during that station's period as "My 103.3". Like Later, Costas' radio shows have focused on a wide variety of topics and have not been limited to sports discussion.
Costas hosted Later with Bob Costas on NBC from 1988 until 1994. This late night show created by Dick Ebersol, coming on at 1:30 a.m. as the third program in NBC's nightly lineup after The Tonight Show Starring Johnny Carson and Late Night with David Letterman, was something of a break from the typical TV talk show format of the era, featuring Costas and a single guest conversing for the entire half hour, without a band, opening monologue or studio audience. On several occasions, Costas held the guest over for multiple nights, and these in-depth discussions won Costas much praise for his interviewing skills. The show was taped in GE Building's studios 3B or 8H at the Rockefeller Plaza, with Costas interviewing the guest for 45 minutes to an hour before turning the material over to editors who condensed it down to 22 minutes plus commercial breaks. More popular guests were given two or three part interviews that ran consecutive nights. In August 1991, Mel Brooks became the only guest for four consecutive nights in the series' history. The program was critically acclaimed, and twice nominated for Emmy's during its 5 1⁄2-year run, with Costas as host. It won the Emmy Award for Best Informational Series in 1993.
In June 2005, Costas was named by CNN president Jonathan Klein as a regular substitute anchor for Larry King's Larry King Live for one year. Costas, as well as Klein, have said Costas was not trying out for King's position on a permanent basis. Nancy Grace was also named a regular substitute host for the show.
On August 18, 2005, Costas refused to host a Larry King Live broadcast where the subject was missing teenager Natalee Holloway. Costas said that because there were no new developments in the story, he felt it had no news value, and he was uncomfortable with television's drift in the direction of tabloid-type stories.
Beginning in October 2011, Costas was a correspondent for Rock Center with Brian Williams. He gained acclaim for his November 2011 live interview of former Pennsylvania State University assistant coach Jerry Sandusky concerning charges of sexual abuse of minors, in which Sandusky called in to deny the charges.
Costas hosts a monthly talk show Costas Tonight on NBC Sports Network.
In 2001, Costas was hired by HBO to host a 12-week series called On the Record with Bob Costas. On the Record with Bob Costas was similar to the format of the old Later program as they both concentrated on in-depth interviews.
In 2002, Costas began a stint as co-host of HBO's long-running series Inside the NFL. Costas remained host of Inside the NFL through the end of the 2007 NFL season. He hosted the show with Cris Collinsworth and former NFL legends Dan Marino and Cris Carter. The program aired each week during the NFL season.
In 2005, On the Record with Bob Costas was revamped to become Costas Now, a monthly issue oriented sports program that occasionally employed a town hall style format.
Costas left HBO to sign with MLB Network in February 2009.
At the channel's launch on January 1, 2009, he hosted the premiere episode of All Time Games, a presentation of the recently discovered kinescope of Game 5 of the 1956 World Series. During the episode, he held a forum with Don Larsen, who pitched MLB's only postseason perfect game during that game, and Yogi Berra, who caught the game.
Costas joined the network full-time on February 3, 2009. He hosts a regular interview show titled MLB Network Studio 42 with Bob Costas as well as special programming, and provides play-by-play for select live baseball game telecasts.
As aforementioned, Costas is currently hosting Thursday Night Football on NBC and NFL Network, having returned to broadcasting after a brief absence.
Costas provided significant contributions to the Ken Burns, PBS mini series Baseball as well as its follow-up The 10th Inning. He also appears in another PBS film, A Time for Champions, produced by St. Louis's Nine Network of Public Media.
Costas is a devoted baseball fan. He's been suggested as a potential commissioner and wrote Fair Ball: A Fan's Case for Baseball in 2000. For his 40th birthday, then Oakland Athletics manager Tony La Russa allowed Costas to manage the club during a spring training game. The first time Costas visited baseball legend Stan Musial's St. Louis eatery, he left a $3.31 tip on a ten dollar tab in homage to Musial's lifetime batting average (.331). Costas delivered the eulogy at Mickey Mantle's funeral. In eulogizing Mantle, Costas described the baseball legend as "a fragile hero to whom we had an emotional attachment so strong and lasting that it defied logic". Costas has even carried a 1958 Mickey Mantle baseball card in his wallet. Costas also delivered the eulogy for Musial after his death in early 2013.
Costas was outspoken about his disdain for Major League Baseball instituting a playoff wild card. Costas believed it diminishes the significance and drama of winning a divisional championship. He prefers a system in which winning the wild card puts a team at some sort of disadvantage, as opposed to an equal level with teams who outplayed them over a 162-game season. Or, as explained in his book Fair Ball, have only the three division winners in each league go to the postseason, with the team with the best record receiving a buy-in to the League Championship Series. Once, on the air on HBO's Inside the NFL, he mentioned that the NFL regular season counted for something, but baseball's was beginning to lose significance. With the advent of the second wild card, Costas has said he feels the format has improved, since there is now a greater premium placed on finishing first. He has suggested a further tweak: Make the wild card round a best two of three, instead of a single game, with all three games, if necessary, on the homefield of the wild card of the better record.
Costas serves as a member of the advisory board of the Baseball Assistance Team, a 501(c)(3) non-profit organization dedicated to helping former Major League, Minor League, and Negro League players through financial and medical difficulties.
On May 26, 2007, Costas discussed the presidency of George W. Bush on his radio show, stating he liked Bush personally, and had been optimistic about his presidency, but said the course of the Iraq war, and other mis-steps have led him to conclude Bush's presidency had "tragically failed" and considered it "overwhelmingly evident, even if you're a conservative Republican, if you're honest about it, this is a failed administration." The following summer, Costas interviewed Bush during the president's appearance at the 2008 Summer Olympics in Beijing.
During a segment on the Sunday Night Football halftime show on December 2, 2012, Costas paraphrased Fox Sports columnist Jason Whitlock in regards to Jovan Belcher's murder-suicide the day prior, stating that the United States' gun culture was causing more domestic disputes to result in death, and that it was likely Belcher and his girlfriend would not have died had he not possessed a gun.
Critics interpreted his remarks as support for gun control, resulting in mostly negative reactions. Many (including former Republican Presidential candidates Mike Huckabee and Herman Cain) felt that Costas should not have used a program typically viewed as entertainment to publicize political views on sensitive topics, Lou Dobbs criticized his remarks for supporting the abolishment of the Second Amendment by quoting a sports writer, while Andrew Levy remarked that he had been given a civics lecture by someone who had "gotten rich thanks in part to a sport that destroys men’s bodies and brains." However, liberal reporter Erik Wemple of The Washington Post praised Costas for speaking out for gun control on the broadcast, feeling that the incident's connection to the NFL provided him with an obligation to acknowledge the incident during the halftime show, stating that "the things that [NFL players] do affect the public beyond whether their teams cover the point spread. And few cases better exemplify that dynamic as powerfully as the Belcher incident."
During the following week, Costas defended his remarks in an appearance on MSNBC's program The Last Word with Lawrence O'Donnell, where he stated that the remarks were related to the country's gun culture, and not about gun control as critics had inferred. Costas did suggest that more regulation be placed on America's gun culture:
"Now, do I believe that we need more comprehensive and more sensible gun control legislation? Yes I do. That doesn't mean repeal the Second Amendment. That doesn't mean a prohibition on someone having a gun to protect their home and their family. It means sensible and more comprehensive gun control legislation. But even if you had that, you would still have the problem of what Jason Whitlock wrote about, and what I agree with. And that is a gun culture in this country."
During his coverage of the 2014 Winter Olympics, Costas was criticized by some conservative members of the media, including Michelle Malkin and Glenn Beck for supposedly praising Vladimir Putin’s role in defusing tensions surrounding Syria, and Iran. Several media commentators, including Bill O’Reilly and Bernard Goldberg, defended Costas’ remarks as factually correct and pointed out that Costas had also voiced considerable criticism of both Russia and Putin while broadcasting from Sochi. During an interview on Fox News Goldberg said "... the idea that Costas somehow portrayed Vladimir Putin as a benign figure is ridiculous." Costas defended himself on O'Reilly's broadcast on March 3, reiterating that he criticized Putin immediately preceding, and following, the statements that were questioned. O'Reilly then aired a portion of an Olympic commentary in which Costas was pointedly critical of the Russian leader. Costas also indicated that Senator John McCain, who had been among those who had initially criticized Costas, had called Costas to apologize after hearing the full segment in context.
Costas was married from 1983 to 2001 to Carole "Randy" Randall Krummenacher. They had two children, son Keith (born 1986) and daughter Taylor (born 1989). Costas once jokingly promised Minnesota Twins center fielder Kirby Puckett that, if he was batting over .350 by the time his child was born, he would name the baby Kirby. Kirby was hitting better than .350, but Bob's son initially was not given a first (or second) name of Kirby. After Puckett reminded Costas of the agreement, the birth certificate was changed to "Keith Michael Kirby Costas". On March 12, 2004, Costas married his second wife, Jill Sutton. Costas and his wife now reside primarily in New York, but he has often said he thinks of St. Louis as his hometown.
Costas's children have also won Sports Emmys; Keith has won two as an associate producer on MLB Network's MLB Tonight and Taylor as an associate producer on NBC's coverage of the 2012 Summer Olympics.
Costas has won eight National Sportcaster of the Year awards from the National Sportscasters and Sportswriters Association. He was inducted into that organization's Hall of Fame in 2012. He has also won four Sportscaster of the Year awards from the American Sportscasters Association and well over twenty Sports Emmy Awards for outstanding sports announcing.
He is the only person in television history to have won Emmys for Sports, News (Sandusky interview), and Entertainment (Later).
In 1999, he was a recipient of the Curt Gowdy Media Award from the Basketball Hall of Fame, which is awarded to members of the electronic and print media for outstanding contributions to the sport.
In 1995, he received a star on the St. Louis Walk of Fame.
In 2000, he won a TV Guide Award for Favorite Sportscaster.
He was selected as the Dick Schaap Award for Outstanding Journalism recipient in 2004.
In 2006, he was also awarded an honorary doctorate in humane letters from Loyola College in Maryland.
In 2012, Costas was awarded the Walter Cronkite Award for Excellence in Journalism.
He is an honorary trustee of Webster University, a private college located in Webster Groves, Missouri. He is a frequent supporter of the school, to include numerous radio commercials.
He is also an honorary board member of the Multiple Myeloma Research Foundation.
In 1994, Costas appeared as the play-by-play announcer for the World Series (working alongside Tim McCarver) in the movie The Scout. In 1998, he appeared as himself along with his rival/counterpart Al Michaels (who now works for NBC) from ABC in the movie BASEketball. Costas voiced the animated character Bob Cutlass, a race announcer, in the movies Cars (2006) and Cars 3 (2017). He also appeared as himself in the 2001 movie Pootie Tang, where he remarks that he saw "the longest damn clip ever".
Costas' voice appeared in the 2011 documentary film Legendary: When Baseball Came to the Bluegrass, which detailed the humble beginnings of the Lexington Legends, a minor league baseball team located in Lexington, Kentucky.
Costas has been alluded to several times in popular music. The songs "Mafioso" by Mac Dre, "We Major" by Domo Genesis and "The Last Huzzah" by Mr. Muthafuckin' eXquire, all refer to Costas. He was also mentioned in a Ludacris song after Costas mentioned the rapper on the late night talk show Last Call with Carson Daly.
In June 2013, Costas provided the voice of "God" in the Monty Python musical Spamalot at The Muny Repertory in St. Louis.
Apart from his normal sportscasting duties, Costas has also presented periodic sports blooper reels, and announced dogsled and elevator races, on Late Night with David Letterman.
In 1985, Costas appeared on The War to Settle the Score, a pre-WrestleMania program that the World Wrestling Federation aired on MTV.
In 1993, Costas hosted the "pregame" show for the final episode of Cheers. Costas once appeared on the television program, NewsRadio, as himself. He hosted an award show and later had some humorous encounters with the crew of WNYX. Costas also once appeared as a guest on the faux talk show cartoon Space Ghost Coast to Coast.
Costas has been impersonated several times by Darrell Hammond on Saturday Night Live. Costas was "supposed" to appear in the fourth-season premiere of Celebrity Deathmatch (ironically titled "Where is Bob Costas?") as a guest-commentator, but about halfway through the episode it was revealed that John Tesh had killed him before the show to take his place.
On June 13, 2008, Costas appeared on MSNBC's commercial-free special coverage of Remembering Tim Russert (1950~2008).
On January 30, 2009, Costas guest-starred as himself on the television series Monk in an episode titled "Mr. Monk Makes the Playoffs"'. He mentions to Captain Stottlemeyer about how Adrian Monk once helped him out of a problem several years ago with regards to a demented cat salesman. He apparently sold Costas a cat that allegedly tried to kill him with a squeeze toy (in fact, when he signs off, he says "The cat was definitely trying to kill me").
Costas guest-voiced as himself in 2010 Simpsons episode, "Boy Meets Curl", when Homer and Marge make the U.S. Olympic curling team. Costas also guest-voiced as himself on the Family Guy episode "Turban Cowboy" in an interview with Peter after he wins the Boston Marathon by hitting everyone with his car.
On February 11, 2010, Stephen Colbert jokingly expressed his desire to stab Costas with an ice pick at the upcoming 2010 Winter Olympics in Vancouver so that Colbert could take over as host. Costas later made a cameo appearance on the February 25, 2010 edition of Colbert's show.
In January 2013, Costas appeared as himself in Go On episode, "Win at All Costas" with Matthew Perry, where Ryan King auditions with him for a TV Show.
Real footage of Costas from NBC's pregame show before Game 5 of the 1994 NBA Finals was used in the second episode of The People v. O.J. Simpson: American Crime Story.
Costas appeared on the September 22, 2017 episode of Real Time with Bill Maher to discuss issues such as concussions and the role of political activism in professional sports (namely by Colin Kaepernick).
In 2002, Costas was the play-by-play announcer, alongside Harold Reynolds, for Triple Play 2002 during the ballgame for PlayStation 2 and Xbox.1974–1976: Spirits of St. Louis Play-by-play, KMOX radio
1976–1981: Missouri Tigers men's basketball Play-by-play, KMOX radio
1976–1979: NFL on CBS Play-by-play
1979–1980: Chicago Bulls Play-by-play, WGN-TV
1980–1983: NFL on NBC Play-by-play
1983–1989: MLB on NBC #2 play-by-play
1984–1992, 2006–2016: NFL on NBC Studio Host
1988–1994: Later Host
1990–1997, 2002: NBA on NBC Studio Host
1992–2016: Summer Olympics Primetime Host
1993, 2017–present: Notre Dame Football on NBC Alternate play-by-play
1994–2000: MLB on NBC Lead play-by-play
1997–2000: NBA on NBC Lead play-by-play
2001–2009: On the Record with Bob Costas and Costas Now Host
2002–2014: Winter Olympics Primetime Host
2002–2008: Inside the NFL Host
2008–2012: AMP Energy NHL Winter Classic Host
2009–present: MLB Network Studio 42 with Bob Costas Host, Thursday Night Baseball Play-by-play
2016: NBC/NFL Network Host, Thursday Night Football