Paddy McGuinness's nifty Riverdance footwork makes a lively opener to this new panel show, based on international news clips and with comedians Rhys Darby and Rufus Hound as team captains. But just as Paddy is game enough to show off his skills at Irish dancing, he's game enough to work with some pretty shoddy material.

The clips are on the geriatric side (there's a Star Wars-themed wedding from 2009) and some of the gags they throw up from guests Janice Dickinson, Louis Walsh, Jason Byrne and Rob Rouse are more mean than clever. Thank the casting department, then, for the presence of Rufus Hound, who kindly goes along with some of the soggier gags before interjecting with a proper one of his own. Saturday nights are a tough nut to crack, but Mad Mad World needs some sharper implements.

Something of a foolproof premise that didn't take a great leap of imagination to commission: celebrities come on and read from their embarrassing teenage diaries. They're famous now so it all turned out OK, leaving them free to rip into their former selves in the company of host Rufus Hound.

First up is Robert Webb, the comedian and actor who has a sideline in sarcastic voiceovers. He uses that skill to make the most of his more than usually pretentious and doomy musings, written in a bungalow in Lincolnshire in 1989.

The present-day Webb neatly sums up the adolescent impulse to document every day of existence despite a lack of events, ascribing it to "that delightful combination of insecurity and conceit that made me think this was the best way to have a decent conversation".

Robert Webb, actor and comedian, opens the diary he kept when he was 17 for the benefit of host (and comedian) Rufus Hound and an enthralled audience. His entries include one about going to a party and kissing a girl he didn't really fancy. I always listen to this programme, now in its fourth series. But I often wonder whether a real conversation with the diaries' authors (who have included Meera Syal, Sheila Hancock, Michael Winner and Julian Clary) would produce something more satisfying than some wisecracks from Hound and lots of easy audience laughs.

Rufus Hound joins One Man, Two Guvnors UK tour

Comedian Rufus Hound will lead the cast of hit comedy One Man, Two Guvnors when it tours the UK later this year.

Rufus Hound interview

Best known as a stand-up comedian and panel show guest, Rufus Hound takes to the Soho stage in Utopia this week. Official London Theatre quizzed him and discovered a technophile fast-food lover with a couple of influential teachers.

Audio: Rufus Hound wants to move into acting

Rufus Hound has told BBC Radio 5 Live's Phil Williams about his moving into acting. The comedian said he had always wanted to be a serious actor and that he had reached a point when he asked himself "what am I doing this for".

Rufus Hound interview

Rufus Hound answers questions like whether he is worried about promoting products as a comedian.

Radio 4's long-running The Unbelievable Truth, basically an update of Call My Bluff, seems to be the exception to the panel show rule in its capacity to entertain. This isn't surprising when you consider it was devised by the same people who dreamt up I'm Sorry I Haven't a Clue. Granted, it has the same rotation of comedians - Jack Dee, Rufus Hound and Lee Mack were this week's guests - and is hosted by David Mitchell, a Stephen Fry-in-waiting who appears pathologically incapable of turning down work. But what it has going for it is an intellectual curiosity that this week turned up such invaluable facts as the radioactive properties of Brazil nuts, Florence Nightingale's love for her pet owl and Indonesia's 17 million boy scouts. The Unbelievable Truth wipes the floor with the competition. If only it could make the competition disappear altogether.

Panellists for new series of Heresy announced

Heresy, in which a panel of broadcasters pick apart everyday assumptions, will be bolstered by the presence of Peep Show star David Mitchell, Supersizer Sue Perkins, Googlewhacker Dave Gorman, actress Maureen Lipman, Private Eye medical correspondent Dr Phil Hammond and the moustachioed comedian Rufus Hound for its upcoming run.