Rachel Riley

One of TV's most unlikely - but no less enjoyable for that - cross-fertilisations returns as the 8 out of 10 Cats comedy quiz team takes over (for the third time) the veteran words and numbers game Countdown. Once again, Jimmy Carr replaces Nick Hewer in the presenter's chair, while Jon Richardson is joined by Rhod Gilbert to take on fellow comedians Lee Mack (replacing absent captain Sean Lock) and Rob Beckett. In Dictionary Corner with Countdown's Susie Dent is performance poet Tim Key, while Rachel Riley gets less welcome assistance from beardy Joe Wilkinson.

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Following the success of last year's special, and as part of Funny Fortnight, Jimmy Carr is back hosting a rematch of Channel 4's MashUp, in which 8 Out of 10 Cats fuses with Countdown. Sean Lock and Jon Richardson face off as team captains, Irish comic David O'Doherty joins Susie Dent in Dictionary Corner and comedian Joe Wilkinson helps out boffin babe Rachel Riley on the numbers.

This now long-running Channel 4 panel game has seen some changes over the years. In this series, Jon Richardson has replaced Jason Manford as team captain; the opening round, "What Are You Talking About?", also now only covers the top three most talked about things in Britain as opposed to the original five. The other major change is that the total scores are no longer mentioned, with host Jimmy Carr now simply saying who's won, rather like Mock the Week.

The one major problem I have with 8 Out of 10 Cats is that almost every time there is always one guest who you'd rather not have on the programme. I went through the panel before the show began thinking to myself: "Russell Kane - established, award winning comic and deserves to be on. Josh Widdicombe - a relatively unknown comic who can use this appearance as his big break. Rachel Riley - well, as someone who regularly co-presents Countdown she has experience of quiz formats. Alex Reid - oh, damn!"

However, having said that, I did enjoy the fact that Reid didn't take himself too seriously, taking part in some pretty self-deprecating humour. However, the guest comics, as to be expected, did perform better; Kane's story about a woman he accidentally offended on a train was a particular highlight.

The comedy panel show is in rude health, there's no doubt about it. Friday night's are when BBC1's genre stalwart Have I Got News For You airs, and now it's joined by three rivals-two of which are new to the airwaves. First there's old-hand 8 Out Of 10 Cats, which is fuelled by statistics and opinion polls compiled about the week's news and gossip. There's been no significant changes to the show's format since it began, although team captain Jason Manford's now been replaced by comedian Jon Richardson.

The show itself can be one of the funniest panel shows around, on a good day. While many contemporaries have to balance jokes with a serious satirical agenda, Cats is as trivial as the lists it uses as its source of information. Headed by three comedians who are presently active on the circuit, it's more obviously an excuse to deliver jokes and amusing observations about topics the nation's chattering about. There isn't much in the way of thought-provoking insights and incisive satire, just pub-level joshing and quips with a topical theme. Team captain Sean Lock's found himself the ideal format for his brand of comedy, too-as I don't care for his stand-up but he seems to thrive in this panel show environment. Having some enforced structure and banter with guests appears to give him a boost.

In many ways Cats reminds me of Mock The Week in its approach to skewering the week's news, but there's a much more pleasant atmosphere to it. Mock often feels like six comedians scrambling to outdo each other in a competitive environment, but those involved with Cats are more gracious to their fellow panelists. Plus, in allowing non-comedian guests (here, cage-fighting fame-whore Alex Reid and Countdown's mouthwatering Rachel Riley), it's more fun seeing them poke fun at people who are in the room-as Mock often feels quite cowardly.