In the early nineties, all the way through to 1999, Dawn French appeared in Murder Most Horrid, a horror comedy anthology show that was created by one of the co-creators of Colin’s Sandwich, Paul Smith. He would team up with Terry Kyan again for Bonjour La Classe.
Each standalone story was written by different people, including Ian Hislop, John Farrell, and Steven Moffat.
This is how episodes in the first series began.
But the conceit was dropped for subsequent series.