have u know how to convert pc as tv?

you may prefer external or internal tv tunercards according to ur need. I think external tuner card is better.

well there different TV tuner cards are available in the market through which you can see tv channels in your PC. they may be internal and external cards in internal cards you have to run your Pc and you can record the programs in external you not need to run cpu , just put on the moniter and you cant record ... so its just depend upon you what you need and what you want if you need more information let me know your exact place of living .. i will guide you how to buy and alos tell what kind of PC you have.