ftatalk.com buy the recviever once around 50$ and never pay again. I have a 200 dollar package of channels that i don't pay for

it takes the signals from big companies and reads them. The companies change their codes once a week or so. So you go on the website look up the type of reciever you have and download the codes. there is a plugin on the back of the recievers just get a cord for them. The codes that you download off the website come with a loader program there should be more info on the forum if you're interested ftatalk.net