Nostalgia
The show was almost called something completely different, too.
The Inbetweeners' James Buckley Shares His Favourite Line From The Show... But It's Not One Of Jay's
Nope – it's not 'bus w***er.'
Including a scene that took a whole week to film, and a celebrity cameo that happened by pure chance.
Including Vicky Beckham exploring the aisles of Tesco and Ant and Dec raiding Woolies.
Put your festive knowledge to the test.
The Christmas classic, which is almost 40 years old, was written by George Michael in his old bedroom at his parent's house in a "moment of wonder".
The greatest Christmas song of all time is almost 30 years old – but we bet you don’t know who inspired the lyrics.
David played Niles Crane in the original series between 1993 and 2004.
I'll never watch the film the same way again.