(24-07-2022, 09:49 PM)harshy Wrote: I imagine if I was sitting in Leeds in the early 90s I’d switch to the network channel and someone (bt) configuring it to the right network region and I’d see a coloured testcard? How would I have known the right region had been switched ?
The testcard would have carried a caption indicating the source? Granada colour bars, or a recognisable circuit identifier (e.g. KRS-57), etc.