Claire Skinner

Series three of this engagingly downbeat family comedy kicks off as Pete and Sue Brockman - the two of them outnumbered by their three children - go sightseeing in London with Pete's mother. Competing tensions are as usual caught precisely as Jake, now 14, Ben, nine, and Karen, seven, each have very different ideas as to what makes for a good day out, and aren't shy of letting their parents know about it.

Hugh Dennis and Claire Skinner play Pete and Sue but their thankless roles as parents in the comedy are mirrored in real life, because they more or less have to stand back and watch the children steal the show. Much of the dialogue is improvised and Karen (Ramona Marquez, who won Best Female Comedy Newcomer at last year's British Comedy Awards) comes up with most of the best lines, including a smart run-through of the dos and don'ts of political correctness. Perhaps these are topped, though, when Ben (Daniel Roche) gives a spot-on, if scatological, analysis of Gordon Brown's political prospects.

A few of the jokes - the confusion between lesbian and Lebanon, for example - are not in their first flush of youth, and the scene in which Dennis is left to clown around on his own is jarring, but otherwise this is a note-perfect sitcom capturing the gentle mundanity of middle-class family life in Britain today.

It's wonderful to have Outnumbered back on our screens for a third series. If you've only just returned from a shopping trip to Mars, it is based on the life and times of two besieged middle-class parents (Hugh Dennis and Claire Skinner) who are doing their best to raise three precocious children. It follows a comic tradition that goes back to Joyce Grenfell, but the brilliance of the show is the accuracy of the children's dialogue and the naturalism of their performances. Because so much of it is improvised, it is inevitable that some episodes won't be as strong as others. But tonight's, in which all the family (including the grandmother) go on a day trip to London, is a delight. I was enjoying it so much that I forgot to take notes in order to steal the best jokes.

Time for series three, and yet again we ask the same question - how is it possible for child actors to be this funny? Episode one opens with Ben and Karen on a London sightseeing trip pondering how lions assisted during the Battle of Trafalgar and 'that king who thought he was made of glass', while parents Hugh Dennis and Claire Skinner do an excellent line in bewildered.

This semi-improvised sitcom continues to amaze in that it is an almost unheard-of example of a middle-class family sitcom that's actually very funny. Caustic, believable and refreshingly unsentimental, it boasts more good gags per episode than most mainstream BBC sitcoms manage in a lifetime.

A large part of its success, of course, is due to the natural performances of its child stars, particularly nine-year-old Ramona Marquez as the maddeningly inquisitive Karen. In this typically joke-packed opening episode, she drags the family - nominally led by selfless straight-men, Hugh Dennis and Claire Skinner - through a hectic historical daytrip to central London aimed at gathering research for her school project. She dismisses people who throw money into fountains as "idiots" and plays spot-the-lesbian with her anarchic brother Ben. Once again, it makes child-rearing look like an unyielding nightmare, but it's all the more hilarious for that.

My body and soul: Claire Skinner

The actor on nights in hospital, becoming a mum and taking up smoking.

If only because it centres so much on the precocious (yet, for the most part, just the right side of annoying) younger members of the cast, there's an obviously limited shelf to this series, centred on the chaotic everyday life of a middle-class south London family. So, who knows, this may well be both the first and last Outnumbered Christmas special.

If it is, it's comfortably up to the standard of the two full series we've enjoyed so far, as we descend upon the Brockman family - Pete (Hugh Dennis), Sue (Claire Skinner) and their unruly offspring Ben, Jake and Karen (Daniel Roche, Tyger Drew-Honey and Ramona Marquez) - on a less than blissful Boxing Day.

One of the many great things about Outnumbered is that it's lovable without being nauseating; the humour is warm, but not cloying. Everything gels. There are great scripts from Andy Hamilton and Guy Jenkin, and a super cast: Hugh Dennis and Claire Skinner as sweetly exasperated parents Pete and Sue, and a trio of astonishing child actors.

Parents-under-siege sitcom Outnumbered is a slow-burning hit that's steadily accumulated both favourable ratings and gongs (it picked up three British Comedy Awards earlier this month). Rightly so, because it's a rare beast: a comedy that captures the chaos of family life without lapsing into sentimentality. This festive episode, then, is a welcome taster for the third series next spring. It's Boxing Day in the Brockman household and, along with Santa, some burglars have squeezed down the chimney. As usual, precocious, pet-obsessed seven-year-old Karen (the remarkable Ramona Marquez) steals the best scenes - she's not only lost the school hamster under the floorboards, but takes it upon herself to make everybody else's New Year's Resolutions, with typical tact. Meanwhile, brother Ben (mop-topped tyke Daniel Roche) wreaks gleeful havoc with a mechanical hand and eldest Jake (the preposterously named Tyger Drew-Honey) is trying to find Awol grandfather Frank (David Ryall). The increasingly senile old goat couldn't be hiding with the hamster, could he? Parents Pete and Sue (Hugh Dennis and Claire Skinner) preside over this pandemonium with beleaguered bafflement.

In normal years, The Royle Family would be the sitcom special to be most keenly anticipated, but after last Christmas's aberration, "The New Sofa", judgement should be reserved on Caroline Aherne's latest reunion, "The Golden Egg Cup" (Christmas Day, 9pm BBC1). For unalloyed excitement, the 'Outnumbered Christmas Special' has me slathering at the chops. It's Boxing Day, and Andy Hamilton and Guy Jenkin's recognisably modern metropolitan family, the Brockmans, has been burgled - and I don't mean harassed parents Hugh Dennis and Claire Skinner getting every scene stolen from under their noses by the improvising child actors, Tyger-Drew Honey, Daniel Roche and Ramona Marquez.

And then just as I was bathed in a warm critical glow that conceivably wasn't even menopausal, I made the mistake of tuning belatedly into Trinity (ITV2), a... um... er... thriller? Comedy? Drama? Sod it, a programme about a bonkers Ivy League-meets-Hogwarts British university full of freaks and sex addicts so charmlessly crass, cynically smutty, joyless, unfunny and badly written and acted (despite starring Charles Dance and Claire Skinner. What. Were. They. Thinking?) that I immediately signed up to the show's Facebook group, where questions such as: "So who looks like the better snog, Theo or Dorian?" (posed by a wicked Wizard of Oz-style ITV employee, presumably), are asked while a horde of 15-year-old girls cyber-shout "Dorian!"

But although buff, beautiful and entirely leech-free, Dorian (Christian Cooke) is a long way from being a pre-watershed hero - no girl would be safe with him alone in a well lit room, much less Afghanistan or a volcano.