I think I know the one you mean
The Carlton idents are my favourites out of every channel!!
They also didn't use it again here until just before 6:30 either, as they didn't use it at 3, then it was CITV, which goes directly into Crossroads, then it was London Tonight promo's.
At least these are more exciting than the previous just text coming-up's. Nice shot of the gallery on the one before the evening news