BBC Four is a BBC television channel available to digital television viewers in the UK. The part successor (with CBeebies) to BBC Knowledge, the station launched on 2 March 2002.
On 10 September 2005, the channel’s new idents were introduced, based on the theme of “four” and optical illusions, for example a swimming pool where a person on an inflatable ring appears in the bottom left corner, though ripples don’t enter the remaining quarters. Although the image appears as one at the start of the ident by the end it is clearly four separate pics.
During the last week of October 2017, BBC Four aired a season of programmes devoted to Inner peace. As part of this, the channel aired these interludes which lasted up to 3 minutes.
A selection of presentation used by BBC Four since September 2005.
A selection of special idents used by BBC Four since 2005.
A selection of Christmas idents used by BBC Four.
In June 2017 BBC Four aired a season of programmes devoted to Japan.
Electric Revolution was a season of programmes on BBC Four that gave viewers a unique insight into how developments in technology shaped our lives over the past 40 years, broadcast in September and October 2009.
A selection of BBC Four idents from its Japanese Season, which began on 16 March 2009.
My Knees are Laughing
Daughter in a Box
On 8 September 2014, BBC Four introduced a collection of idents coinciding with a season on abstract art.
A special week of programmes about Pop Art.
On 10 September 2005, new idents were introduced on BBC Four, based on the theme of "four" and optical illusions.