Two excellent autobiographical shorts in the Little Crackers season beginning with Stephen Fry recalling his time as a rule-breaker at his strict public school (the young Fry winningly played by Daniel Roche). Then, at 9.15pm, Kathy Burke remembers the final day of school exams when all she could dream of being was a writer for the NME.

The way Stephen Fry's turned out, who would have thought he was a precocious blighter cheekier than a building site in summer? You'd have thought teachers would have adored a pupil who could correct them all the time. Yet that wasn't the case, as this fine comedy set in a 1960s boarding school finds a young Fry (Daniel Roche, monopolising the cheeky posh boy roles now that he's the lead in Just William, too) in bother with his headmaster (Stephen Fry). Disappointed with the tuck shop offerings, young Fry heads further afield to procure fresh sugary supplies, but when he's caught getting sweets from the village, he's faced with a choice - will he 'fess up, or use new boy Bunce as a patsy?

This is the fourth time Richmal Compton's larger-than-life schoolboy has been cut down to size for the small screen (previous William Browns famously include a scabby-kneed Dennis Waterman - he could be so bad for you), and some might argue these stories actually work best on the radio, c/o the peerless readings of Martin Jarvis - who, in a best-of-both-worlds scenario, also intermittently narrates this new 1950s-set adaptation from Simon Nye, which does lack a certain fizz. Outnumbered's Daniel Roche plays the scowling scamp, tonight encountering Violet Elizabeth Bott.

Outnumbered actor Daniel Roche to star in Just William

Outnumbered child star Daniel Roche - who plays naughty Ben Brockman in the BBC comedy - is to play the lead role in a new adaptation of Just William.

Outnumbered's Daniel Roche is just the boy

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.

The youngest son Ben (Daniel Roche) is in trouble at school for re-enacting the running of the bulls at Pamplona. Back in the relative safety of the home, he busies himself playing games inspired by Bear Grylls, one of which involves climbing up the north face of the wardrobe - until it is struck by an avalanche. Dad (Hugh Dennis), meanwhile, is still in the doghouse after the night of the bright green cocktails when he kissed a stranger. But all of this pales into insignificance when little Karen (Ramona Marquez) is hit by a car on the way to the school concert and rushed into hospital. Fortunately it isn't serious - just a few bumps and bruises. It's the unsuspecting nurse at the hospital you need to worry about.

Few things are guaranteed to make you panic quite so much as someone telling you not to. That's certainly the case in the last episode of the current series as Jake has to break news of a very worrying phone call to his dad.

With Pete and Sue's marriage rocky this week after he drunkenly kissed another woman, the Brockmans are really going through the mill. But thanks to the resilient skin of young boys all this is water off a duck's back to Ben, who is occupied elsewhere re-enacting his latest battle and attempting to become the first man to scale Everest (or the stairs at any rate) backwards without oxygen.

And Jake is about to discover that even family disasters can have a silver lining of sorts when Kelly - the object of his first serious teenage crush - is recruited to babysit him and his brother. As always though, it's Karen who steals the show during an earnestly hilarious conversation with a nurse in A&E.

As another series ends you can't help but wonder how long Ben and Karen's reign will last and what sort of performers the actors who play them will eventually grow into. Daniel Roche who plays Ben already looks like Alan Davies's tiny stunt-double, while Ramona Marquez would be able to reduce politicians to tears with a line of questioning and logic that would shame Jeremy Paxman.

The fourth episode of what has been an inconsistent third series of the sitcom following the travails of the Brockman family. Sue (Claire Skinner) is trying to prepare the house to show around potential buyers, at the same time as Pete (Hugh Dennis) gets ready for his colonoscopy while hung-over from a drunken night out. The children are up to their usual mischief, with Karen (Ramona Marquez) refusing to go to school and Ben (Daniel Roche) in trouble for playground antics. Though the show feels as if it's winding down as the children grow more knowing, on the form of this episode it remains more inventive than most of the competition.

Dad (Hugh Dennis) has woken up with a crippling hangover having being ambushed by bright green cocktails. His youngest son, Ben (Daniel Roche), is bitterly disappointed that he missed the sight of his father being sick. "Your face is all grey," he says, "like someone shaded you in with a pencil. You smell like the relief teacher who didn't last very long. The one with the shaky hand who kept bursting into tears for no reason." Because the day of Dad's hangover also happens to be Friday 13th, Karen (Ramona Marquez) is refusing to leave the house in case something bad happens and she is eaten by bears on the way to school. And to cap it all, this is the day that house hunters are coming round to view the house. Once again, Outnumbered provides half an hour of pure happiness.