Digital 3and4

Digital 3&4 is a consortium consisting of regional Channel 3 companies and Channel Four Television Corporation, which operates a multiplex broadcasting from a number of transmitter sites in the UK, carrying television and radio channels (in addition to interactive services) from both ITV and Channel 4; however, three per-cent of the capacity is allocated to Teletext Unlike other multiplexes, the regional ITV broadcaster has control into which services are to be broadcast on their allotted amount of the capacity, and this can be shown by the small regional differences across the country.