Beginning another series of amiable panel-game mendacity. Should you not have caught any of the previous six series, this is a show in which Rob Brydon presides over two teams as they attempt to wrongfoot each other with claims made by their members. An "if it ain't broke" format, even down to the guests: David Mitchell and Lee Mack captain the teams, with return appearances this week from comedians Dara O'Briain and Rhod Gilbert, and newcomer celebs Denise van Outen and Vernon Kay.

Returning to assume his hosting position for an eye-watering seventh series, Rob Brydon stirs the comedy panel-show action with his familiar scurrilous cheek. David Mitchell and Lee Mack are back in harness as team captains, and tonight's porky-spinning guest line-up includes Rhod Gilbert, Vernon Kay, Dara O'Briain and Denise Van Outen. Who will turn out to be the most credible fibbers/most gullible listeners when it comes to telling tales - tall or true - about their own lives?

If you haven't seen or heard of 8 Out of 10 Cats before then you probably don't have a television and have no need to be reading this. It's your straightforward celebrity panel quiz show where the questions are based around various surveys and statistics, as is explained at the top of the show by host Jimmy Carr.

This week they aired a second episode of the show where the host and guests are, for no explained reason, playing a game of Countdown. I can only assume that the initial C4 mash-up was a big hit and they thought, "Aaah why not, eh?" As usual, Jimmy rattled off a number of scripted gags, ranging from fair to poor, and Jon Richardson was his usual dour self, taking the role of team captain.

Notably missing from the line up was Sean Lock, which was a big loss to the show. Sean usually adds a nice eccentricity with his obvious lack of ego, never afraid to pick up on jarring absurdities of 'celebrity' guests on the regular weekly edition. Lee Mack was a fair replacement though, quick witted as usual, with a number of nice one-liners. He even managed to score a nine-letter word early on leaving the ever competitive Jon Richardson with plenty of room to play up his comically-angry persona.

Lee was joined by Rob Beckett and Jon by Rhod Gilbert, both of whom were funny and likeable. Tim Key was in Dictionary Corner and although enjoyable, he didn't have as much of a chance to shine as I would have liked. Joe Wilkinson appeared around the halfway point to "assist" Rachel with the letters, however he had no real reason to be on the show. Wilkinson is undoubtedly a funny man, but the number of appearances he makes on the show is somewhat diluting the hilarity of his "crazy antics".

An entertaining and fun show, then, providing you're not put off by the odd Savile joke or sexual objectification. Just saying.

For reasons never really explained - well, beyond the fact that the letters board presents a fine opportunity for puerile mischief - the Cats mob have become a little smitten with Countdown: this is the third mash-up between the shows in little over a year. Jimmy Carr again hosts, though Sean Lock is away on tour, so regular captain Jon Richardson pairs up with gruff Welshman Rhod Gilbert to take on Rob Beckett and panel show pro Lee Mack. Over in dictionary corner, Countdown veteran Susie Dent is joined by the marvellous Tim Key.

Playing the comedy-show mash-up game, afternoon favourite Countdown gets a prime-time makeover, with regular Cats Jon Richardson and Rhod Gilbert pitting their wits against opponents Lee Mack and Rob Beckett. Over in Dictionary Corner, the very funny Tim Key reserves the right to delete any wordy offerings that don't come up to scratch. And maybe he'll treat us to one of his comedy poems - they deserve a show of their own.

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.

Lloyd Langford interview

Most well-known for his work with superstar-comedian and fellow Welshman Rhod Gilbert, stepping out of this man's shadow would always prove an interesting journey - but Lloyd Langford is going for it, with his first solo stand-up tour.

Ask Rhod Gilbert axed

Ask Rhod Gilbert has been axed by the BBC.

The return of a series that was binned after one episode last month - up against Africa on Wednesday night, it died on its backside. Now, in a less high-profile slot, it continues its exploration of the commercial end of comedy by looking at how managers and agents ensure that the nation's top comics earn pop-star bucks. Rhod Gilbert and Jo Brand, whose extremely candid interviews helped to make the first episode so engrossing, are back along with Eddie Izzard and David Baddiel.

This three-part documentary series, narrated by journalist Eddie Mair, looks at the 'darker', money-making side of the comedy world.

The first episode looks at how many comics, in particular stand-ups, make money by performing at corporates. It shows performances from The Real Variety Show where comics play in front of business people keen on booking them for events.

Then it follows the world of adverts, discussing comics like Mark Arden and Stephen Frost (who did ads for Carling Black Label) to QI creator John Lloyd (who first met Alan Davies when Lloyd directed ads for Abbey National.) I know there's a history of comics doing adverts - despite the public outrage at Mark Watson a few years back - but I was suprised at the frequency of appearances. Most of the ads were produced 'before my time' as it were, so were quite shocking in a way. Stephen Fry and Hugh Laurie advertising tobacco?

It's definitely a growing trend, though; if you're feeling bored, you can play a little game where you try to spot how many times in a three-minute period you can hear the voice of Hugh Dennis.

Off all the people on Funny Business, though, the most interesting was Rhod Gilbert. Rhod explained how one corporate gig resulted in him sacking them off altogether, and how he justified doing adverts for the Welsh tourist board because he was promoting a country rather than a product. There were also interesting contributions from Mark Thomas, who attacked just about any involvement of comedians and advertising. The only advertising I can think that he has been involved in was with early episodes of The Mark Thomas Comedy Product, which were sponsored by small independent shops - like a gentlemen's hairdressers and a record shop.

Funny Business declares that the problem with advertising is that there's no funny ads. I can't help but think the problem's that there are ads to start with.