[Neil Jones]

The thing is it's not an anniversary of Children's programming, but of the national in-vision continuity between them which replaced Watch It!

Given that the current CITV channel doesn't have that in-vision pres it would be strange for it to have much of a celebration. Very different to the recent(ish) CBBC anniversary show.

Well, no, not really. It's 40 years of the brand CITV - one which virtually everyone in the country knows, and one which ITV would be mad to ditch. I don't think there will be much of a celebration (sadly) but it would certainly be nice. Incidentally, if we count the mid-90s out-of-vision period, then CITV has now been without IVC for longer then it had it.

If you want to be pedantic about it "CITV" didn't exist (properly) until probably 1996
It was previously "Children's ITV", which was all over the branding, though I appreciate "CITV" was all over the voiceover and the supplementary trailers, and I get the impression they couldn't make up their mind what they wanted to call the service!

There are examples on YouTube of the old 1991 logo still being used to an extent as late as 1996, when the DOG was introduced, though by that point it seemed to only appear on maybe intros and outros (indeed a video from 1997 suggested they'd dropped the vertical "Childrens" by 1997).

Although that being said, here's an identity crisis from 1991 when that look was first introduced - a corporate looking ident and then look what turns up on the telly behind Tommy:
www.youtube.com