This will REALLY test you old fogies ... 1960s teatime tv .. !!

You know when something really bugs you and you need an answer to settle your brain, well this has bugged me for years and it has come back to haunt me tonight.
Do any of you remember in the 1960s when tv started up every day at about 4.30 or 5pm or thereabouts?
Obviously it was in black and white and there were only 2 channels, BBC and ITV or Rediffusion or whatever it was called.
Before the first teatime programme there was always an introduction which consisted of music played over a film of tv studios with spotlights, cameras etc which lasted a minute or so. It gave your telly time to warm up.
I can't remember which channel it preceded and I certainly can't find anything on the interweb or youtube.
It's actually difficult to put into words in google search what I'm looking for.
So come you old folk, tell me you remember it too and tell me what it is.

 

They're called start-up films or startups. BBC had them, as did each of the regional ITV stations. There's tons of them on YouTube.

 

Yes, I'd found some of these but still not the one I think I remember.
I'll keep looking.

 

In the early / mid 70's me and my sister used to listen to what we called 'the Yorkshire telly music' for ages, watching just a letter Y on the screen. I believe it was a mash-up between the Dambusters and Ilkley Moor B'aht At.

Fast forward to 2 minutes to avoid all the start-up noise.