Guy Jenkin

An anthropologist of the future wanting to study the life of British children in the early 21st century would have a field day with Outnumbered, the sitcom beloved of the middle classes because it so precisely seems to reflect their lives.

In the opening episode of the fourth series, shown on Friday, daughter Karen is having a conversation with her mother, Sue, who has just started to work full-time. "It's a mum's duty to pick up her children from school," she opines.

When her mother points out that she herself might like to work when she grows up, her retort is swift: "See, you're getting aggressive. That's what happens to women who work like men. They start turning into men. They get hairy chests and they smash up town centres." Sue exclaims in exasperation, but Karen barely looks up from her colouring. "You're getting aggressive. You'll get hairy." As a mother who works full time and spends a lot of the rest of my life sitting around kitchen tables having remarkably similar chats with my offspring, the exchange made me rock both with laughter and recognition. It is this sense of shared experience that has made Outnumbered, written by Andy Hamilton and Guy Jenkin, but also partly improvised by its cast, such a success.

Whereas most television sitcoms, such as My Family, which preceded it on screen last week, rely on incident, plot and comic misunderstanding to raise a laugh, Outnumbered is always at its best when its characters are simply bumbling through the mundane business of their lives: the fight over the Wii controller, the cheese stuck in the toaster, the dinosaur melted in the microwave, the keys which vanish just as you are leaving home.

It is particularly sharp on the vagaries of modern language: this week's conversations about the use of the word "gay" could have been recorded in many homes as a generation of school children apply it in the new sense of "feeble" to the horror of their parents who have co-opted it (against the wishes of a previous generation) to mean homosexual. The glee of the children when their father described the Wii controller as a "nunchuck" - "you said you'd never say that, you said that it wasn't a real word" - was equally astute.

From the anthropological point of view, however, it is the way in which the children behave that is of most interest. The family depicted in Outnumbered is one where the children rule: their parents are hapless, helpless adjuncts to the kids' power. It is not only that the youngsters argue each and every point. It is that on many occasions - such as Karen's decision to attend her uncle's funeral - they get their own way against the wishes of their parents.

In this way, Outnumbered depicts the sea change in behaviour in which a generation brought up to be submissive to its parents, finds itself once again in thrall - but this time to its children. For all its humour, it is essentially true.

Outnumbered: Leader of the comedy revolution?

Combining fine actor improvisation, a smart script and some relatively innocuous storylines to paint a familiar picture of the 'joys' of family life, Andy Hamilton and Guy Jenkin's creation has amassed enough prizes to make Alex Ferguson go green-eyed. But with the kids another year older I wondered if it could still cut it.

The Brockmans are the most convincing sitcom family since the Royles. The last episode in the latest series of Outnumbered was, as usual, perfectly pitched between exquisite gag-packed comedy and fleeting moments of unsentimental family drama.

But even when dealing with Pete's drunken indiscretion with another woman, or little Karen's road accident, writers Andy Hamilton and Guy Jenkin never lost sight of their comic intent. Instead, Karen expressed disappointment that dad had broken his wedding vows - "the vicar's going to be furious" - before harassing a kindly nurse with tacit threats of legal action if her jab hurt more than just "a tiny bit" as promised.

The subtly touching closing scene, in which the realistically reunited parents left hospital with a bandaged Karen, as she wittered on delightfully, said more about enduring family ties than any number of schmaltzy homilies.

Although the youngest kids in Outnumbered are exasperating, they're also unaffectedly charming and clearly far funnier and more real than any other children in sitcom history. Partly improvised by child actors Ramona Marquez and Daniel Roche, their skewed righteousness, ruthless inquisitiveness and semi-logical flights of fancy appear to be an endless source of inspired comedy. I just can't work out whether it's a good thing or not that one of the funniest comedy performers in Britain is a partially scripted nine-year-old girl.

On the box: Outnumbered

It can't be very often that people find themselves missing the screeching, irritating and endless chatter of unruly children. After the last episode of Outnumbered last night, however, there will no doubt be more than a few people asking just when the next series will roll along on.

On the box: Outnumbered

It's almost the end of this latest series, and there will be a nation hoping that the family can stay together, at least for a few more years of mayhem and madness.

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.

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.

Outnumbered lost out to The IT Crowd at the Baftas this year, which wasn't just baffling it was also a real pity, because Guy Jenkin and Andy Hamilton's winning portrayal of the minor absurdities of family life, and its brilliant, scene-stealing child actors, deserve proper recognition. In a repeat of series two's first episode, the family, including hapless mum and dad Sue and Pete (Claire Skinner and Hugh Dennis), is off to a wedding. As always they hover perilously close to being late as violence-obsessed Ben (Daniel Roche) debates if hitting someone who is attacking you with a shovel would be OK, limpid-eyed Karen (Ramona Marquez) locks herself in the bathroom and Jake (Tyger Drew-Honey) worries. It's achingly funny and packed with lovely moments, including Karen's remorseless quizzing of the increasingly unnerved bride, that always end with the grown-ups being outmanoeuvered.

A complaint often levelled at television is that there are far too many repeats slotted into the schedules, which can be a highly valid gripe. But when the repeat in question is another go for Outnumbered series two (which gained decent ratings on its previous Saturday showing), we'll let it go. Andy Hamilton and Guy Jenkin's heavily improvised comedy is a constant delight as Hugh Dennis and Claire Skinner play the average couple with three kids - and it's the kids that steal the show every time. In this first episode, Pete and Sue shepherd their brood to a family wedding - with predictably chaotic results. Highly recommended.