On Tuesday December 24 from 9pm until midnight, the broadcaster will air this year's IT Crowd Special: The Internet is Coming (9pm), behind-the-scenes documentary The IT Crowd Manual (10pm), The Fan's Favourite Episode (11pm), and Graham Linehan's Favourite Episode (11.30pm).
The IT Crowd: 5 magic moments from Maurice Moss
Fans can vote for their favourite episode soon on the Channel 4 website.
The IT Crowd Manual is narrated by Stephen Mangan and includes classic clips from the show alongside interviews with Richard Ayoade, Chris O'Dowd, Katherine Parkinson and Matt Berry, as well as input from fans Paul Whitehouse , Danny Wallace, Kevin Eldon, Frances Barber, Matthew Crosby, Boyd Hilton and Lucy Montgomery.
Show creator Linehan will give a guided tour of the basement set he calls "a cheerful mess".
Links for the night were written and directed by Linehan with Parkinson.
Watch a Digital Spy Twitter chat with Chris O'Dowd below: