If you want to watch TV channels online for free this website might be of your interest. Worldtvpc.com is a free site that lets you watch TV channels of all kinds as well as videos and films. On World TV PC you can watch music and movies TV stations in addition to documentaries and cartoon channels.
Therefore, if you want to watch satellite TV on your PC you can enter this site and watch Cartoon Network and MTV as well as Discovery Chanel and ESPN. Moreover, HBO, TNT and Space are available. Notice that to watch TV on your PC online you just need to enter Worldtvpc.com and browse the different channels, no subscription is needed.
As a conclusion, if you want to watch TV on your PC for free you can visit Worldtvpc.com and browse the channels list to watch music and movie channels featuring HBO and MTV among others. 
