I've never owned a TV since i moved out of my parents house in 1993 and i used to get warning letters with big red writing on the envelope threatening legal action every so often but for the past few years i've not had anything, perhaps it's because i used to attach the prepaid payment envelope to a very large box with a single letter in the bottom from myself saying i did not own a TV at present, I have never owned a TV and never will own a TV but i would be more than happy to pay a small fee for the excellent BBC radio service as long as they could guarantee it would only be spent on World Service broadcasts. I never heard anything by return despite sending dozens of boxes of various sizes back to them over the years.
I've never had them call at the door either, but even if they did they have no right of access, that is reserved for customs and excise, and police with a warrant.
I do listen to the radio for hours every day and i'd be more than happy to pay for it as long as all the money raised would be spent on radio programming, as for iplayer or suchlike i could count with one hand the amount of hours i've watched this month, TV is an incredible waste of time, D'ya think you'll ever say "i wish i'd watched more TV" on your deathbed?...... I doubt it so switch it off, read a book, listen to the radio, make time to listen to music, sit and stare at the fire for hours whilst clearing your mind of shite.