BBC2 (first era)
The launch of the channel was delayed by a day by an infamous power failure in Central London.
The first official colour channel in the UK launched on UHF in 1967, and with it came a brand new ident. The logo revolves like the BBC1 globe ident used at the time.
In 1979 BBC2 launches the first ever fully computer generated ident in the world, let alone the UK - three years before Channel 4's flying blocks.
BBC Two (first era)
BBC2 (second era)
As part of an extensive rebrand to cast off BBC2's 'highbrow' tone, Lambie-Nairn launched a brand new set of idents which lasted 10 years until they were replaced in 2001. For the first time a corporate logo scheme featuring the 1988 BBC logo was employed across all of the BBC's services. The rebrand did work, and although the programming was exactly the same as before, the perception of BBC2 by the public shifted from 'highbrow' and 'stuffy' to cool and trendy.
BBC Two (second era)
On October 4, 1997, BBC Two got a new look created by Lambie-Nairn.
In November 2001, the logo was boxed. The idents were changed for the first time in 10 years; the logo stayed the same, but it was given a pair of arms and a personality. The BBC added to the roster of 4 idents over the years.
A new logo of the arrived on February 18, 2007. The font was changed to Avenir and the box's color was changed to teal. The blade '2' has been slightly altered, it is now more squat than before.
On September 29, 2018, with the rebranding of the BBC, BBC Two Introduced a new logo.