18 December

Events

 * 1978: Blue Peter disco dance and Christmas Tree switch-on
 * 1979: World Disco Dancing Championship (ITV)
 * 2009: Terry Wogan's final Breakfast Show
 * 1993: Arena Radio Night
 * 2019: Donald Trump impeached by House of Representatives

Charts
as announced on this day, with no.1 single (new in bold). Click year for full chart.
 * 1968: The Scaffold - Lily The Pink (2/4 n.c.)
 * 1973: Slade - Merry Xmas Everybody (2/5)
 * 1979: Pink Floyd - Another Brick In The Wall Pt.2 (2/5)
 * 1984: Band Aid - Do They Know It's Christmas? (2/5) (no.2 Wham! - Last Christmas)
 * 1988: Cliff Richard - Mistletoe & Wine (3/4)
 * 1994: East 17 - Stay Another Day (3/5)
 * 2005: Nizlopi - JCB Song (1/1)
 * 2011: Little Mix - Cannonball (1/1)
 * 2015: Justin Bieber - Love Yourself (3/6 n.c.)

Top of the Pops
host DJ and number one single. Click year for show details.
 * 1969: Tony Blackburn. Rolf Harris – Two Little Boys
 * 1975: DLT. Queen - Bohemian Rhapsody
 * 1980: Simon Bates. John Lennon – (Just Like) Starting Over.
 * 1986: Mike Smith. The Housemartins - Caravan of Love.
 * 1998: Jayne Middlemiss. B*WITCHED – To You I Belong.
 * 2005: Fearne Cotton & Rufus Hound. Nizlopi – The J.C.B. Song.

Stamps

 * none