[robertclark125]

Yes I suspect the 09.25 interval was helpful to technically inept schoolteachers to know that they had the set tuned to the correct channel, and would be something calm while they tried to get the kids settled before the programme.

(The number of schools watching live rather than using a VCR was probably minimal by 1989 but the fact that they used the roto sequence indicates it was not zero)

My primary school had a VCR, but most of the time, we watched the stuff live. Room 16, at Denend Primary. God, I still remember it yet, black curtains, red carpet tiles!