Gok Wan

Remember Trinny and Susannah? They were all the rage at the turn of the century - mauling women's breasts and telling them to wear proper bras. A money-spinning move to ITV followed, no one watched, Gok Wan became the nation's new makeover supremo and they've been quiet ever since.

Until now. Trinny & Susannah: From Boom To Bust (C4) was a spoof doc that acknowledged the duo's slump into TV limbo - charting their antics as they're dumped by their agent and try to get another programme deal. The mockumentary is a well-worn format and we'd seen it all before, the David Brent-esque faux egomania, tantrums and the attention-hungry celebs making random cameos.

There were several laughs to be had, though. Susannah showed a natural talent for playing a mentally unravelling borderline alcoholic and there were amusing digs at their showbiz chums. When, after losing a Cilit Bang advertising deal, the pair are seen crying in a shed, Trinny greets the news that David Furnish is popping round with an exasparated: 'Could this day get any f***ing worse?'

Meanwhile, their supposed new shows, Walk Tall With Trinny And Susannah, in which they made over jockeys, and Get A Leg Up With Trinny And Susannah, in which they found 'real-life unemployed people' jobs, nicely satirised the increasing desperation of TV documentary formats. It was a fun way of raising their profiles but difficult to see where it was leading. Is TV ready for a genre-mangling mockumentary makeover series? Stay tuned!

Based on an (apparently) successful US model, the UK version of A Comedy Roast sees a parade of utterly uninteresting "celebrities", faux-insulted by a panel of comedians in a kind of This Is Your Life for the Big Brother generation.

Anyway, last night was Sharon Osbourne's turn. Presumably, her casting had more to do with her availability than her suitability; there can be little other explanation. No one, bar no one, needs to hear another word about her, even if it is from the pleasingly snarled lips of Jack Dee.

It's a shame, really, since some of the gags weren't bad at all. Patrick Kielty gave a particularly enjoyable turn. Who knew he could be so vicious? Even Gok Wan, who surely ranks close to Sharon Osbourne in the overexposure stakes, was pretty good. No, the problem isn't the jokes. It's their subject.

Given the level of venom each episode's victims have to tolerate, it seems unlikely that the show would attract anyone but the desperate or the egotistical. Both of which, frankly, I could do without.

Like a best man speech for a celebrity, the roast - where a famous guest of honour is mercilessly insulted by other celebs - is a long-standing ­tradition in the US. Channel 4 has imported the concept and tonight it's the turn of Sharon Osbourne - a human equivalent of an open goal.

Hosted by Jimmy Carr, this is the funniest and also the rudest hour of TV all week, with Jack Dee, Patrick Kielty, Gok Wan, Alan Carr, Louis Walsh, Ronni Ancona, Keith Lemon and Elton John paying acid-tongued tribute to Sharon's extensive plastic surgery, mothering skills and propensity for sending dog poo to her enemies.

And this put-down from Patrick Kielty shows that nothing is too near to the knuckle. "It's fair to say that Ozzy has never strayed," he quips. "He did once make a dash for freedom but after Sharon cut the brakes on the quad bike, he's now learned his lesson..."

Anyone who knows Justin Lee Collins and the horror of his Bring Back... programmes will be relieved to know that this new mixture of chat and variety show is nowhere near as bad as it might have been. Filmed in front of a young audience of 300-odd people at the plush Rivoli Ballroom in south London, it is full of good humour and high spirits. "I wanted the show to feel like a circus," he says, "with me as the ringmaster." During the run of the series, he will play darts with Meat Loaf and Ewan McGregor, interview Gok Wan and Mathew Horne, compliment Sharon Osborne on her plastic surgery and organise an offbeat dance competition. The most pleasant surprise of all is that he doesn't scream and shout with artificial exuberance.

Among the celebrity couples being predictably skewered tonight are Cheryl and Ashley Cole, Katie and Peter, Phil 'n' Fern, and even Ewan McGregor and Charlie Boorman.

You could never accuse this show of being lazy - but as Kevin Bishop's hairstyle changes almost faster than your brain can keep up, the sense of urgency about all these rapid-fire sketches is in danger sometimes of over-riding the sense of comedy.

Still there's plenty in the mix tonight to raise a smile, including Gok Wan, Billie Piper's next project, Diary Of A Call Centre Girl and a news story about transfer deadlines for soap stars featuring a cameo from former Corrie star Bruce Jones.

This is the perfect sketch show for people with a short attention span or for anyone who is too busy to watch TV or go to the movies. Here are all the shows you meant to get around to watching, brilliantly held up for ridicule by Kevin Bishop and co.

In the opening programme of Kevin's new series, still in the channel-surfing format, he does the dirty on Frost/Nixon and Horne and Corden, offers a genius Gok Wan impression, mocks The Secret Millionaire and (in the blink of an eye) pieces together Michael Jackson: What Really Happened. Plus about a hundred others. You could never accuse this show of not giving you value for money.

And if, like me, you dutifully sat through the entirety of Channel 4's Red Riding series, trying to stay awake on the basis that it was dark and Northern and therefore must be somehow good for you, consider the final sketch tonight to be your just reward.

Return of the hilarious comedy sketch show in which Kevin Bishop takes potshots at Gok Wan and Harry Hill.

Along with two packets of Munchies and a strawberry Nesquik, one of our Friday night treats is this smashing comedy, which flicks between spoofs of TV shows, films and adverts. Somehow, the previous series managed to win nothing at the British Comedy Awards, despite several nominations, and this travesty will hopefully be righted with Kevin's new potshots at the likes of Simon Cowell.

Kevin Bishop is a kind, if hyperactive, lad in real life. The best moments of his show are when he's being rude about stuff we hate: the gurning of Horne and Corden, the stupid Gok Wan rhyming and anglophile Americans. There's also a nice take on Frost/Nixon sequels. Parkinson/Emu, Best/Wogan and Reed/Aspel. The duff moments are his take on House (don't mess with Laurie) and a sketch that's a bit too close to John Thomson's Bernard Righton. We've not seen his Harry Hill yet as it wasn't in this ep, but it better be good. Or else.