With the Beeb currently, and in some cases ill-advisedly, reworking classic sitcoms, here's a tie-in quiz show hosted by Ben Miller in which celebrity funny folk test their knowledge of the genre that made them famous. Jennifer Saunders, Stephen Mangan, Jessica Hynes and Lee Mack are among the contestants. As Pointless fans will attest, however, celebrities are useless at quizzes - none of the luminaries get the Reg Varney question, an old pub quiz chestnut.

The danger of constantly celebrating the past

Nostalgia. Easy promotability. A blend of old and new. Low risk. Lots of press. And a brand new half hour to be written by Clement and Frenais, writers of the near-perfect Porridge. What's not to like? As a consumer of comedy, I'm fine with all of the above obviously. As a writer of comedy, my feelings are slightly more mixed.