This week a new exhibition with no pretence to seriousness opens at Tate Britain. Rude Britannia: British Comic Art is a comprehensive tour of a great national tradition: having a laugh in a line drawing. The show covers the boardwalk from Gilray and Cruikshank to Gerald Scarfe and Steve Bell. It also includes the work of a cartoonist and illustrator whose world view, more than any other, now seems deliciously quaint and old-fashioned: Donald McGill. All four examples from the exhibition are included here.

The Doctor Who crew are fond of their encounters with historical characters. In his time, and let's face it he has infinite supplies of it, the Doc has rubbed shoulders with Shakespeare, Charles Dickens and Agatha Christie, and recently weathered the Blitz with Winston Churchill. For this one, "Vincent and the Doctor", le Docteur voyaged back to 19th-century Provence to straighten out a puzzling temporal kink.

Thanks to the shenanigans of Brit-art superstars like Messrs Emin and Hirst, Art has become a lucrative appendage of pop culture, so it’s only logical that it should be given its own version of X Factor, with a bit of Apprentice-style authoritarianism bolted on for good measure. In School of Saatchi, a panel of judges sifts through a long list of hopefuls who are whittled down to 12, then six, then finally to the chosen one who will be installed in a London studio for three years under Charles Saatchi’s patronage.