I had an idea that there was also something like this in The Idiot’s Lantern but that was set at the time of the coronation so that seems unlikely.

Rememberance was, IIRC, deliberately set at in the year of the first episode of Doctor Who (1963 – so perhaps it was the 25th anniversary?) and there was additionally a reference to the Totters Lane junkyard in which Ian and Barbara first saw the TARDIS, after following Susan Foreman back there.