When Jean Renoir returned to France at the end of 1953 after 13 years of exile, he felt as if he were beginning his career from scratch. His Hollywood films were not highly regarded, and neither The River (1951) nor The Golden Coach (1953), shot in India and Italy respectively, were successful enough to redeem his international standing among reviewers or at the box office. The critical consensus declared that he was an artist in decline. There were exceptions, of course, one of the most important being Cahiers du Cinéma, the magazine founded in 1951.

Who could argue that television isn’t a great medium for learning about art? In its pared-down, visually literate way it delivers what dull, theory-laden extrapolations often can’t (if only because artists don’t think that way when they make things, and we don’t think that way when we look at things). It can breathe renewed life and vigour into a subject we think we know well, and, as a medium for simplified, pocket-sized information, it can get straight to the heart of a matter. Perfect. Possibly. And so we come to The Impressionists: Painting and Revolution.

One of the highlights of this year’s Brighton Festival, curated largely via web chats and long-distance phone conversations by Aung San Suu Kyi, is Kutlug Ataman’s silent film installation Mesopotamian Dramaturgies. The leading Turkish artist, a favourite of international biennales and arts festivals, has taken over the town’s Old Municipal Market to show two multiple-screen works. And in this vast, disused space, as gloomily dark and dank as it is cavernous, we find the perfect backdrop against which Ataman’s films shine.

There’s a little-known side to the 19th-century American artist John Singer Sargent, and it is as far removed from the razzle-dazzle of his glittering career as a high-society portraitist as you can imagine. The artist who was famously described by Rodin as “the Van Dyck of our times” started his career emulating that great master of the seas, J M W Turner. He diligently honed his craft by painting dramatic seascapes, gentle coastlines and noble fishing folk. And if the 20-year-old Sargent couldn’t quite manage the roiling waves and lowering skies with quite the same level of brilliance as the English painter, he nonetheless possessed a quite remarkable artistic maturity. Turner, by contrast, couldn’t paint a convincing human figure for love nor money.

This time, the hype was perhaps deserved: Christie's did have a claim to be putting on, last night, the sale of the century.

Jan Ravens is probably best known for several series of Dead Ringers, broadcast first on Radio 4 then BBC2, when she voiced all the female characters from Kirsty Wark and Fiona Bruce to Ann Widdecombe and Nigella Lawson. Before that she was part of the Spitting Image team, appeared on Alexei Sayle's Stuff and in sitcoms No Frills and The Grimleys. She has also appeared in 2DTV and Alastair McGowan's Big Impression.