It doesn't work like that, TV goon knocks on the door, when you answer they tell you who they are, you say no thank you & close the door, don't engage in a discussion with them, don't speak to them, that way you don't trip up & drop yourself in it, they are only sales people from Capita, and have no powers whatsoever, you have to sign in to iPlayer so they know if you're watching it, and can trace it back to your ip address if necessary, if you don't talk to them, they can't instigate a prosecution, let alone get The Police involved