Michael McIntyre heads up a galaxy of stars in this 90-minute special showcasing the best of Red Nose Day 2011. Lenny Henry, JLS and Dermot O'Leary report back on how this year's record-breaking 108 million pounds has been spent in Africa, while Michael sets out on a mission to thank as many people as possible here in the UK for their fundraising efforts, including David Walliams and James Corden.

An hour of pure comedy gold refined from 2011's Comic Relief television marathon, the celebrity-packed extravaganza in which Britain did something funny for money.

23:05 - 00:00
Jonathan Ross and Claudia Winkleman are live in the studio. Find out how David Walliams got on in the Greatest Panel Show of all Time, Steve Coogan returns with a very special Alan Partridge and The Inbetweeners boys have been on a Rude Road Trip around the UK.

00:00 - 01:15
The fun continues with highlights from the immense panel show marathon, the Greatest Panel Show of all Time, Kate Moss takes part in a jaw-dropping new sketch and Summer Heights High's Chris Lilley premieres his new tv comedy show Angry Boys. And if that's not enough, Armstrong and Miller have been up to some very naughty things.

The packed night of TV laughs continues with Lenny Henry and Fearne Cotton.

James Corden, John Bishop, David Walliams, Catherine Tate and Alan Carr combine to form Fake That, the ultimate Take That tribute group.

There is also a hilarious sketch from Miranda Hart, Ant and Dec race against time to raise cash, and Gareth Malone faces his Waterloo when he attempts to turn a group of TV chefs into choristers.

19:00 - 20:15
The biggest night in television kicks off with Michael McIntyre and Claudia Winkleman. The fun begins with a very special Outnumbered featuring Andy Murray. There is also mini episode of Dr Who and Ruby Wax, Claudia Winkleman and Miranda Hart go head to head in the politically-charged Comic Relief Does MasterChef.

20:15 - 21:20
Graham Norton and Davina McCall will then take over the reigns. Highlights include the culmination of a special Comic Relief storyline in Eastenders, a Downton Abbey spoof featuring Jennifer Saunders, Joanna Lumley, Kim Cattrall and Victoria Wood amongst many many others. And Ant and Dec are racing against time to raise cash for Comic Relief.

21:20 - 22:30
Dermot O'Leary takes over the presenting duties and the laughs continue with something very special from Peter Kay. James Corden returns for the latest instalment of Smithy featuring the biggest names in showbusiness, Harry Hill is joined by some very special friends from the wildlife kingdom, and Take That and Adele will be performing live.

Top stand-up comedians Jack Whitehall and Kevin Bridges take Comic Relief through to the early hours with a selection of the best comedy clips of the last couple of years. Featuring brilliant comedy from Steve Coogan, Ben Stiller, Rob Brydon, Mitchell and Webb, Armstrong and Miller, Ronnie Corbett, Miranda Hart, Sean Lock and Kate Moss, plus some exclusive comedy never seen before on British television.

The epic story of what happens when nine celebrities attempt the ultimate endurance challenge for Comic Relief - a gruelling 100km trek across a desert in Northern Kenya. Fighting exhaustion, blisters, scorpions, stomach bugs and temperatures pushing 50 degrees Celsius, it is an adventure they will never forget. With Dermot O'Leary, Lorraine Kelly, Kara Tointon, Ronni Ancona, Craig David, Olly Murs, Nadia Sawalha, Scott Mills and Peter White.

The full story of daredevil Blue Peter presenter Helen Skelton's incredible attempt to walk a high-wire between two chimneys of London's Battersea Power Station - and set a new record for the highest high-wire walk ever by a woman in the UK. The 150-metre-long wire will be suspended 66 metres (216 feet) up in the air. The programme traces Helen's journey from the start of her training before Christmas, through a high wire bootcamp in the south of France, to the final record-breaking stunt, all in aid of Red Nose Day. Helen also visits children in Uganda to see the difference that Red Nose Day money makes.