Getting back on track, when Central took over from ATV, some schools programming with the ATV ident had a "Central Presents" slide in front, before the ATV ident. But, I'm sure some normal programmes had it as well. Am I right, and if so, which ones?
It was actually very rare to see the ATV ident after 1982 except during schools broadcasting. Repeats of ATV schools programmes had 'Central Presents' followed by the ATV frontcap, and no attempt was made to hide the ATV endcap. This continued until the end of 1984, after which everything was re-edited with Central front and endcaps.
Outside of school hours though, Central were more brand conscious. Very early 1982 episodes of Crossroads started with 'Central Presents' (but no ATV zoom) and closed with a 'Central Production' or 'Presentation' slide superimposed. Family Fortunes in 1982 had the Central ident played out 'live' (noticeable as the source was once switched to Central IVC after the ident, instead of the opening titles. The endcap was also added live, and often mistimed so brief glimpses of the ATV endcap went out on air. Bob Monkhouse often referenced ATV during the show, eg. 'ATV will double the prize money'.
Several repeat series, such as ATV's Vet in 1983,were rebadged 'live', and often clumsily.
After Central updated their logo in 1983, even repeats of 1982/early 83 programmes were rebadged live, before the tapes were re-edited. For example, I have the same 1983 episode of Starting Science from three different transmissions (83,84 and I think 86) and they all have different endcaps!