BBC Knowledge

Background
BBC Knowledge was an early BBC digital channel available in cable, satellite and terrestrial broadcasting. It was launched on June 1, 1999, and provided programmes of documentary, cultural and educational television. The channel would close down on March 2, 2002 and was replaced by BBC Four.

1st Logo (June 1, 1999-2000)
Logo: We see cartoon characters climbing ladders on an background, while showing items like a magnifying glass, a telescope or a roll of paper. Eventually, the screen is centred in one ladder, while the BBC Knowledge logo appears below.

Technique: Hand-drawn cartoonish animation.

Music/Sounds: TBA.

Availability: Extinct.

2nd Logo (1999-2001)
Logo: TBA.

Technique: TBA.

Music/Sounds: TBA.

Availability: Extinct.

3rd Logo (2000-March 2, 2002)
Logo: We see several sorts of circles or rings zooming quickly towards the screen while the background changes colour: First, a ring made of flame on a background, then a ring of  numbers on a  background, a water puddle on a  background, a spinning ring of metal on an  background, and finally a  eye iris on a background of the same colour. All of this repeats.

Technique: 3D computer animation.

Music/Sounds: An "orchestral" version of the previous logo's music.

Availability: Extinct.