When that ad break aired, it was during the initial period, when the Channel 4 airtime was sold by the regional ITV companies. Notice, one of the adverts was for new houses in the south of England, so this would've been played out by TVS in Southampton. Tony thought that the other adverts you saw, like the one for the houses, were being played out from cartridges, but the last one was clearly cinefilm. It appears that, what happened was the projector, or whatever device was used for transmitting cine, wouldn't start in time, and so the shambles you saw, with black screen, the purple, the black, the brief music, the yellow 4 logo, the black, and then the countdown, was the consequences of this.
I'm surprised they were using TK for ads on C4, I thought TVS had gone to 100% VT
Cart playout for C4 ? (bluecortina will know) It's possible the lead in we saw had been dubbed to the cart, if you get my drift.
The yellow '4' on a blue background I saw a couple of times 82-93. TVS used it if the incoming feed from C4 in London was lost (usually because of a BT lines failure). Probably a black and white caption camera, fed through a 'Cox Box', (perhaps redeployed from Southern's caption system, that was 'coloursed b/w)
Yes, pretty sure it was 100% ACR at that stage. My likely guess would be a cart miscue on the final ad and hence the big gap. Looks like it was eventually cued and played from the original ‘start’ recording position rather than the second sequent ‘roll’ start cue* It wouldn’t have been played live into the break off telecine.
* ads were generally simply recorded individually onto a cart ‘wild’ and then subsequently cues laid down on the parallel cue track to indicate the ad’s actual start and end points. From memory these sorts of cart machines could lay down the cues automatically when making the original recording but it relied on the operator pressing the record button exactly on time. You’d never get it frame accurate which was what was needed hence the slight faffing around afterwards with the cues.