Can you add these?

You should add more lost idents from pre-1991 and post-2001, such as:

Christmas idents (1967-1973, 1975)

An ident with the BBC Four logo on the center (2005?)

An ident from around September 1990 which can be seen here: https://www.tvforum.co.uk/tvhome/missing-archive-39267/page-50

A "Gay Night" ident, not sure if this is a real ident, but it is mentioned here: http://www.meldrum.co.uk/mhp/identzone/bbc2/bbc2_91themes.html

If you add these, maybe you should rename the page.