They do exist but there is a time delay and you dont get anything like Sky One or Sports, only the crappy ones, for £1 its owrth a try tho, a mate did it and it wasnt that impressive. Im sure if you searched for long enough you would find it on google. All it is is the digital channels being routed through a big server and fed over the web on a stream. It will have to buffer all the time so it mite lag a bit every now and again, not recommended of not on broadband.