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> > A (terrestrial) telly intercepts transmissions using an aerial. As far as I know, it does not broadcast anything. So how do those vans that stalk our streets work? Can an unlicensed TV actually be detected? Can a licensed one, for that matter?
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> Am I missing something, or do you have to have a TV license in England?
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> Wormwood

Someday, I will learn to speak British (a strange dialect of English). So far, I have learned that a terrestrial is a station that broadcasts from a tower built on earth, rather than an orbiting sattellite. Also an advert is a commercial. An aerial is an antenna. I will add these terms to my list that includes "telly," "boot," and "bonnet."
I have a license on my car, called a "tag." I have a license that allows me to drive it. But none of the TV's in the house have a license tag nor do I have a license to drive a TV. Over here in the colonies, we license our boat and we have a license to fish from it. We license a dog, and a business and sometimes we take poetic license, but I guess things are different in the UK.
How"TV from a satellite is extraterrestrial"ard