Just an idea, I may be bonkers......

[Kitwn]

After 21 years as a T-E. I'd have thought you had had enough of radio interference and not needed to listen to it at all, even though it is free !

Rob-T

One of the problems of being an engineer in that field is you can be more aware of the technical quality than the program content.
I was very much a talk radio man, R4 and the World Service were my favourites, but rarely watched television. I spent the last 16 of those years as a lecturer at the BBC's technical training school and was known for saying of TV "I teach people how it works, I'm not obliged to watch it". I usualy had (still have) no idea who people were talking about when discussing programmes. Unless it was David Attenbourough of course.

Voicecoil,
If you're going to be THAT determined even the power of Auntie will have to give in.

[Voicecoil]

It was entirely unintentional, and indeed a problem that took quite a bit of shielding (including a screened speaker lead!) to solve. So were you at Wood Norton then? A couple of colleagues of mine went through courses there, just the best training on the planet at the time: shutting it down/farming it off was probably the worst thing the BBC has done.