November 2, 1982-October 11, 1996[]
Bumper: The Channel 4 Blocks logo forming in different ways in different variants.
Variant: Early on, "(NAME OF SHOW) follows shortly" would appear.
FX/SFX: The formation.
Music/Sounds: None.
Availability: Extinct.
October 11, 1996-April 2, 1999[]
Bumper: We see the circles forming over a random background, one of the circles has the Channel 4 logo in it.
FX/SFX: The circles.
Music/Sounds: None.
Availability: Same as the previous bumper.
April 2, 1999-December 31, 2004[]
Bumper: We see the Channel 4 Square logo on the right side as the transparent random coloured vertical bar passes.
Variant: Starting in 2002, the logo wipes in via shine effects over a black background.
FX/SFX: The bar.
Music/Sounds: None.
Availability: Same as the previous bumpers.
December 31, 2004-September 2015[]
Bumper: We see the 3D Channel 4 Parts moving slowly, we see the random background through the 3D cut out sides.
Variant: Starting in 2010, a grey line is put with the break bumper to make a split screen effect.
FX/SFX: The parts of the logo moving.
Music/Sounds: None.
Availability: Extinct, as Channel 4 rebranded the logo in September 2015.