Arena is the longest-running arts documentary programme for television at the BBC, and perhaps the world: as the BBC itself phrases it, this compendium celebration presented 24 hours in 90 minutes for 40 years, marking the show's latest anniversary. Conceived by the ever-creative and energetic Humphrey Burton all that while ago, Arena has made over 600 films, looking at high and low culture with equal curiosity, alacrity and even audacity.

There's the First Night and there's the Last Night. Nowadays among the staples of the two-month world-famous festival of music at the Royal Albert Hall, there is also the Doctor Who Prom. Last night, to mark the 50th anniversary of the resurgent TV sci-fi show, a celebration was laid on featuring Murray Gold's music from the last eight years of Doctor Who.

What we're used to seeing whenever the BBC launches on one of its epic explorations of the natural world is moving pictures. But as well as training film cameras at their subects, from the largest mountains and glaciers to the smallest organisms, the hardy modern-day adventurers armed with their phenomenal hi-tech kit also train still cameras at everything they encounter.

Downton Abbey was judged a risk when ITV cleared Sunday nights to accommodate it. It cost a good deal, and harked back to a world and an era which, it might be supposed, a modern television audience would no longer wish to visit. But aside from the pedigree supplied by Julian Fellowes, who had already helped to create one country house in Gosford Park, it had two things going for it: the quality of the cast and the quality of the costumes. On the assumption that its devotees will now be entering a period of mourning, theartsdesk celebrates both in a gallery of images from the set of Downton Abbey.

Downton Abbey was judged a risk when ITV cleared Sunday nights to accommodate it. It cost a good deal, and harked back to a world and an era which, it might be supposed, a modern television audience would no longer wish to visit. But aside from the pedigree supplied by Julian Fellowes, who had already helped to create one country house in Gosford Park, it had two things going for it: the quality of the cast and the quality of the costumes. On the assumption that its devotees will now be entering a period of mourning, theartsdesk celebrates both in a gallery of images from the set of Downton Abbey.

It's sometimes referred to, just a bit dismissively, as bonnet drama. Whenever television visits the 19th century, the headwear of the female characters does indeed play its part. Of no adaptation of Victorian fiction is that truer than Cranford. The actresses wearing the bonnets are fairly resplendent too. This Christmas they are queueing up to appear in Heidi Thomas's new dramatisation set in Mrs Gaskell's quiet Cheshire town.