Would it be possible to build a box that plugs in between your TV aerial and the TV (or other device) to block the reception of any broadcast for which it is a legal requirement to have a TV Licence, until such time as a valid Licence number is input? Someone suggested this elsewhere and it sounds like a brilliant idea for anyone who wants to ditch the Licence legally without having to jump through too many hoops. If, of course, such technology is possible. Any idea please? Thanks folks.