Pay-TV refers to a subscription-based television service that requires viewers to pay a periodic fee to access exclusive content. There are several synonyms for this term, including premium TV, subscription TV, cable TV, and satellite TV. Premium TV is a term used to refer to channels that require additional payment on top of the regular cable subscription fee. Subscription TV is a term used to describe programming that can only be accessed after paying for a subscription. Cable TV refers to the service offered by cable companies where TV channels are transmitted via cable lines. Satellite TV is a subscription-based TV service that uses a satellite dish to transmit television signals.