During 'A Bite of History' their was a break in the programme. With ' SOUTHERN END TRANSMISSON ' interupting a black screen with that on and some sort of TV colour card. With a beep noise and a woman saying ' This is line KRS ' twice.
It then cut to the secound part of the programme. Anyone else receive this fault?
What I believe it was was that Leeds failed to air their ad break in the middle of the regional programme so we were left with the default feed coming from London which is the KRS slide thing
It used to make brief appearances every now and then in the early days of national continuity
KRS - means Kings Reach Studios, a name that Kent House aka The London Studios was originally going to have and many of the lines in and out of the place are still prefixed with KRS. Source
So the slide you saw will have been identifying a circuit out of the Southern Playout Centre on the South Bank.