is it heard on a wired phone or a cordless phone?
what does it sound like, a hum or a buzz or random static?
what does the TV interfrence look like, little dots or wavely lines?
(I'm not joking, these have a specific meaning)
what do you mean some lights? how does it effect the lights?
my guess is that this is a brushless motor that is driven by
electronics and the electronics are creating RF interference
If you know a ham radio operator in the area, he (or she) may be able
to help you.