Advent Calendar 2021 Day 16: Whodunnit?, 1974

For something that doesn't often get talked about Whodunnit? lasted a long time, six series in all. Created for Thames and penned by writing supergroup Jeremy Lloyd and Lance Percival, Jon Pertwee acted as overseer as celebrity guests attempted to work out who that week's murderer was from what was acted out in front of them by means of deduction, reasoning and in the best traditions later upheld by Cluedo old fashioned cross-examination. On its sole Christmas special, aired on Boxing Day 1974 with appropriate set, a man who recently inherited a fortune drops dead after the Christmas Eve family dinner and it's up to Patrick Mower, Wendy Craig, Derek Nimmo and Leslie Crowther to work out who did it. Complicating, or maybe improving, matters is a smattering of famous faces in the cast, notably the former Sir Lancelot/Ian Chesterton, William Russell, as the deceased, Ronald Hines and Nicola Pagett among the accused and Barrie "I'm Barrie Gosney" Gosney as the waiter, but also a tremendous MacGuffin featuring Eamonn Andrews as a drunk waiter serving Hughie Green, whose bad temper may not have strictly been acting.