| 15 October – 23 December 1989|
The Last of the Summer Wines eleventh series aired on BBC1. All of the episodes were written by Roy Clarke and produced and directed by Alan J. W. Bell.
Last of the Summer Wine (series 11) Wikipedia
The trio in this series consisted of:
Christmas Special (1989)
The box set for series ten was released by Universal Playback in September 2008, mislabelled as a box set for series 11 & 12.