Anyone for Denis? (1982)

[cosmo]

Another Private Eye spin-off, this time base on the "Dear Bill" letters that were "supposedly" written by Lord Th4tch3r to his friend R33s-M0gg the Elder.

And also originally developed as a stage play, shortly after adapted by television.

Featuring an ensemble cast including; John Wells (who also wrote it), Angela Thorne, John Cater, Nicky Henson, Roy Kinnear, Alfred Molina, and Joan Sanderson.