April 6, 2011, 11:15 am

Over at the BBC, Banksy has apparently left a mark of his affection for the platform puzzler Lemmings, which recently celebrated its 20th anniversary.

A member of staff who has seen the graffiti said: “This image seems to have sprung up in the last day or two, so may well be Banksy’s own tribute to Lemmings and the Dundee computer games industry.”