More of us watch TV on Christmas Day than at any other time of year. Ade Edmondson celebrates the festive season by delving deep into the archives, reminiscing as Eric Morecambe makes an improvised live appearance in the World of Sport studio, and the Christmas schedule is interrupted by a live broadcast of man's first ever moon orbit, which captivated 1 billion viewers and listeners in 64 countries. There's also a look back at the comedy specials that defined their decades, from Till Death Us Do Part in the 1960s to Only Fools and Horses in the 1980s, a never-to-be-forgotten Christmas Day 1986 episode of EastEnders, and the adverts that launched classic toys like Action Man, Tiny Tears and Lego.