BBC4 - Saturday Night TV Season

[buster]

I didn't realise the cartoons were played in from elsewhere, epecially as I recall them usually being mixed in and out with effects, and the credits shrunk down etc. which gave me the impression they were run in via the studio. But maybe that wasn't the case/

What they would do is run the cartoons from VT (because, in those days, you had to), bring up the VT machine as a source from TC7, do whatever transition you wanted into it, but then once it started NC1 would change the on air source from TC7 to the correct VT machine. So when I've seen "official" recordings of Going Live et al, what you tend to see during the cartoons is the first and last couple of minutes but in between lots of rehearsals and cameras lining up preparing for the next bit.