Guests up for a spot of teasing between the product plugs include Fleabag's hot priest Andrew Scott, who returns to our screens this week in a new series of Black Mirror, and singer Paloma Faith, here to reveal what it was like turning actor to play the villain in Batman TV prequel Pennyworth.

St Trinian's Class of 2007: Where are they now?

So where are the actresses who made up the St Trinian's Class of 2007 now? And where are the characters they played most likely to have ended up?

Fringe Q&As: Morgan and West

Morgan and West discuss grumpy humans, moustaches and performing with Paloma Faith.

Two US actors and a stiff upper lip grace Norton's studio tonight as Matt Damon, Bill Murray and Hugh Bonneville drop in to give us the lowdown on their roles in George Clooney's The Monuments Men.

Quirky songbird Paloma Faith turns on the funk in the studio with her latest single, Can't Rely On You. If you can't wait until tonight, here's a rollicking live version doing the rounds online that was recorded in a kitchen, complete with backing singers and an acre of tartan.

If his chat show is anything to go by, Graham Norton could keep up his chirpy line in celeb quizzing in his sleep. Which is just as well, for tonight he embarks on a mammoth six-hour chat-athon in a Guinness Book of World Records bid to pose the most questions asked on a TV chat show. All in aid of Comic Relief. Our Graham's not flying solo, though - Frank Skinner and Terry Wogan are on the subs bench and there's music from Example, Paloma Faith, Hurts and Laura Mvula. Celeb guests chatting along include Louis Smith, Martin Freeman, Russell Tovey, Heston Blumenthal and Sarah Millican.

Norton foregoes the usual physical challenges beloved of Comic Relief for a more sedentary affair: attempting to set the Guinness world record for most questions asked on a TV chat show, which should see him broadcasting into the wee hours of Friday morning. We can only hope that Graham also dispenses with his usual tipple of wine with guests, otherwise this chatathon is going to get very messy.

So far guests announced as appearing on the sofa include Ronnie Corbett, RT's Sarah Millican, Martin Freeman, Elle Macpherson, James Nesbitt, Louis Smith, Heston Blumenthal, Warwick Davis, Russell Tovey and Jimmy Carr, though you wouldn't bet against an American superstar or two turning up, too. Music acts will include Example, Paloma Faith, Hurts and Laura Mvula.

Graham will be assisted by co-hosts Terry Wogan, Frank Skinner and Nick Grimshaw, and viewers can help, too, by submitting questions via Twitter and Facebook. And by donating money.

Singer Paloma Faith guest-stars as Georgia, a grating cockney showgirl brought to Blandings by cockscomb-haired idiot Freddie. Georgia takes an instant shine to clenched butler Beach, who's terrified.

Guy Andrews's adaptations of PG Wodehouse's stories have come in for flak from some viewers for being empty piffle, shorn of Wodehouse's wit. They have a point, and it's hard to see who the stories are aimed at. Still, Blandings fills a need for a bit of nonsense on a Sunday afternoon, where it's won audiences of more than five million. So there are many people who will doubtless enjoy David Walliams's return as fussy secretary Baxter.

Frank Skinner pulls back his magic joystick to reveal another set of extreme dislikes. While the delightfully offbeat Paloma Faith would give Ugg boots the boot and merrily accuses Skinner of voting Tory, she's disconcerted by the tendencies of her fellow guests, blokey comedian Jason Manford and Dragons' Den moneybags Deborah Meaden, who can't bear it when she has to wait behind people rummaging for change in a shop. Like she does her own shopping.

"I think they're both a bit uptight," trills the one and only Paloma Faith as Deborah Meaden and Jason Manford air their grumbles. Has nobody told her that being uptight is a pre-requisite for this show? Here, uptightness is as essential as a plausible way with an anecdote on Would I Lie to You? or a skimpy swimsuit on Splash!

The fact that Meaden and Manford quake with fury when people at checkout queues don't have their money ready to pay might be worrying in some quarters; here it's the stuff of comedy. And Faith has her own hang-ups: she hates Ugg boots so much she fires anyone who comes to work in them.