Living in Japan once in a while someone from NTT knocks on my door asking that i give them money for receiving the signal they broadcast.
my teachers told me about this scam however i tell them two true things
1. i dont have a TV. so im not paying for something i'm not receiving
2. if you don't want me to get the signal then don't broadcast it to me.
same should apply here. the TV stations broadcasted their signal in "cleartext"