Adrian Chiles

David Beckham, Roxy Music, Mickey Rourke and Jackie Chan will be the last ever guests on Friday Night With Jonathan Ross which ends tonight. After the outcry over his £6million salary, and the prank phone call to Andrew Sachs that led to his suspension (and, ironically, jump-started Sachs' career) his position at the top of the BBC totem pole had become untenable. But it's not the end of Wossy.

He's already signed a deal with ITV for a brand new show which will appear towards the end of 2011, making him the third BBC presenter, after Adrian Chiles and Christine Bleakley to defect to ITV recently.

The move also means he'll have presented talk shows on three different networks, having made his presenting debut in the Last Resort With Jonathan Ross on Channel 4. It was that show which first shook up the staid and stuffy British chat show by injecting satirical comedy, irreverence and a fresh, American-style vibe. That style has now become so much the norm you couldn't imagine it being any other way.

Friday nights really won't be the same without him.

If the producers of The One Show were looking to replace Adrian Chiles with a host who displays a similar enthusiasm for the minutiae of modern life, then matey Mancunian comic Jason Manford should be a sound appointment. Here, the 8 Out of 10 Cats star is captured at the Manchester Apollo on his 2009 stand-up tour, pondering the unspoken rules of the living room, the road and the men's room; imagine Michael McIntyre, except not so well-spoken and with more gags about parallel parking. Manford's humour is gentle - he elicits few gasps or belly-laughs - but his eagerness to interact with the audience is genuine and it's a pleasure to spend an hour in his company.

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Is Jason Manford the right choice for The One Show?

Jason who? The Eight Out of Ten Cats captain might be a surprise choice, but may well turn out to be a good replacement for Adrian Chiles.

Paul Merton to be guest host on The One Show

Have I Got News for You team captain and Watchdog presenter to stand in on BBC1 show after Adrian Chiles's departure.

Jon Culshaw (Dead Ringers) and Debra Stephenson (Frankie Baldwin in Coronation Street) join forces in this new sketch show featuring their range of almost flawless impersonations. With his brilliant George W Bush on Dead Ringers, Culshaw has already established himself as a John Sessions for the Noughties. It's remarkable, though, that Stephenson hasn't unveiled her impersonating skill until now. She does a mean (in both senses) Anne Robinson, and performs some impressive facial gymnastics as a hyperventilating Davina McCall getting so excited over a bedtime story she ends up upside down. As is eternally the way with these shows, the quality of the jokes lags behind the success of the impressions themselves. The sight of Culshaw and Stephenson as Adrian Chiles and Christine Bleakley on the sofa of The One Show is as banal as the original - though it's made up for by Culshaw's superbly dead-eyed Hugh Fearnley-Whittingstall barbecuing a polecat on Autumnwatch in front of Stephenson's Kate Humble. Most impressively of all, Stephenson nails the voices of not just one but both Minogues - Kylie as an irrepressibly sunny little pixie, and Dannii a steely, glacial automaton.

Speaking of cricket, much was made during the Ashes series of 2005 of the footballification of the game, whereby people who didn't know one end of a bat from the other were caught up in the excitement of a great series. For a time, the summer game became as much of a topic of conversation as the year-round game. It was, to a cricket fan, a frankly unedifying sight and sound, epitomised for me when Adrian Chiles, who had always come across as an amiable if slightly dull broadcaster, went on the radio before the last Test and said that he hoped the match would be rained off so that England could win the Ashes. Only a football fan puts the result ahead of the game. Luckily the next series, in Australia, was a whitewash and the likes of Chiles went back to having sleepless nights about the fortunes of West Bromwich Albion, leaving cricket to cricket lovers, not lovers of events.

But now the Australians are back, the first Test starts on Wednesday (ball by ball coverage on Test Match Special, 5 Live Sports Extra and Radio 4 longwave) and once again the broadcasters will be hoping that Ashes fever will grip the sort of people who think that Andrew Flintoff's first name is Fred. On Saturday there was the first of six "comedy" chat shows under the title Yes It's the Ashes (Radio 5 Live, 11am), in which Andy Zaltsmann and other people paid to be funny will be reacting to events during the series in a thigh-slappingly jocular way. Now, it is possible to funny about cricket - the Australians Roy and HG have been doing it for years. But they aim at the correct audience: the knowledgeable cricket fan. Zaltsmann - who does know and love the game, and has blogs on specialist cricket sites to prove it - has aimed his, it seems, at Adrian Chiles.

So Zaltsmann's programme was filled with "hilarious" made-up facts about the greats of the game, as well as reports from Zaltsmann's friends in Australia and America about how the inhabitants were gearing up for the series. Both countries were in the grip of Ashes fever, apparently - but one of the correspondents was lying. Oh, one's aching sides.

There were a couple of star guests - the comedians Phil Cornwell and Paul Sinha - supposedly there to offer humorous insights, but mainly there to laugh at Zaltsmann's tortuous metaphors (although Cornwell did establish his bona fides as a cricket expert by asking what the significance was of the numbers underneath the crest on the players' shirts. If he didn't know that already, what was he doing on a cricket show? Oh, right - being a Tottenham fan).

This Saturday, of course, we'll be three days into the Test, and Zaltsmann will have real cricket to discuss with Frank Skinner. He likes his sport, as we all know. Football, mainly. Big supporter of West Brom. If Skinner comes, can Chiles be far behind?

Stewart Lee takes a discursive romp through television, taking swipes at everything from BBC1's The One Show and its host Adrian Chiles ("like being trapped in the buffet car of a slow-moving express train with a Toby jug") to TV audiences ("What do you want?"). The latter is an extended rant against anyone who's ever taken part in a "top TV funny moment" poll and cast their vote for "Del Boy falling through the bar". Lee obviously isn't a fan and he's quietly furious. He goes on too long, but you can see his point. But Lee is at his best when he's firing pellets of wit at everything from BBC founder Lord Reith's supposed "jazz racism" to Andrew Lloyd Webber's Any Dream Will Do.

A trio of Guillemots banging away on the piano is not the only reason FM gave me hope for the future of the British sitcom, though they undoubtedly helped. This radio station romp, with Chris O'Dowd and Kevin Bishop as Smashey & Nicey for the noughties, oscillated so wildly between cool and naff it was as weird as watching Morrissey chitchat with Adrian Chiles on The One Show.

Though it's certainly the greatest radio-based sitcom since Frasier, FM can't decide whether it wants to be down with the kids of give 'em a kick up the skinny jeans. It tries too hard and not hard enough, throwing in rubbish jokes and sharp one-liners with scant regard for quality control, yet somehow - unlike the over-praised No Heroics, its closest cousin - it's actually funny.

That's largely down to the sheer likeability O'Dowd and Bishop bring to the pair of ludicrous out-of-touch muppets they are playing. The kind of DJs who got into it because they like the sound of their own voices not because of anything as daft as the music, they're past their shelf life and they know it. But that doesn't mean they're going to let any young'uns muscle in on the act.

It's no instant classic and there's nothing much in the way of a plot but FM has its finger sharply on the ageism dial like no other sitcom. Drag yourself away from the comedy genius of Robert Webb doing a Jennifer Beals impression and give it a go.