Ronnie Barker and Ronnie Corbett were an unlikely comedy team but their talents complemented each other perfectly in a series that would run for 16 years and become part of British television history.

From their introduction, "And in a packed programme tonight..." to the "Goodnight from him", viewers would savour the familiar features - the opening and closing news items, the party sketches, the doctor's surgery set pieces, Ronnie Barker's word-play speeches, the rambling monologues from Ronnie Corbett and some magnificent musical pastiches.

This fourth series was broadcast in January and February 1975, shortly after Ronnie Barker's successful first series of Porridge. The eight episodes featured some of the all-time favourite Two Ronnies sketches including Swedish Made Simple ("F.U.N.E.X.?"), the Rook Restaurant, the Plumstead Ladies Male Voice Choir and the news bulletin where the typewriter has replaced all the e's with o's (accounting for the inclusion of writers "H.G. Wolls and Hilairo Bolloc"). The series also saw the return of detectives Charley Farley and Piggy Malone in the thrilling serial "Death Can Be Fatal".