They were able to detect if you were using a unlicenced TV, by the radiation emmitted by the cathode ray tube, therefore when plasma and LCD came in, they were no longer able to do this, thats not to say they ever had the equipment in detector vans.
If you buy a new TV, the supplying dealer has to fill in a form with your name and address on, this is what TV licensing rely on, but they do assume that everyone has a TV so bombard you with threats, which are best ignored.
TBH if I was living alone then I would not own a TV or have the need for a licence
If you buy a new TV, the supplying dealer has to fill in a form with your name and address on, this is what TV licensing rely on, but they do assume that everyone has a TV so bombard you with threats, which are best ignored.
TBH if I was living alone then I would not own a TV or have the need for a licence