Film on Four
Film4 began as Film on Four, a television movie block on Channel 4.
In 1998, the television block transited into a channel. They began using the 1999-2004 Channel 4 logo from the start.
The logo was modified in 2003 but the 1999 Channel 4 logo was removed and the colours inverted.
When Film4 relaunched as a free service on 23 July 2006, they started using this logo.
On 27 September 2018, Channel 4's multi channels rebranded with Film4 incorporating the Channel 4 logo. The logo has the word "FILM" in red placed on the Channel 4 logo