Sounds like you need a multimedia PC
You will need a very fast and reliable connection to run television programs. 6 MBs per second perhaps being the minimum 10-20 MBs perhaps being better. Do you have fast ISPs in your area like cable? A good graphics card will be needed also. You might wish to look over the minimum system requirements for the services your considering for TV programming before you buy hardware or connectivity. A huge monitor might be handy too. LOL
One thing you might do it try webcamming to make contact with your relatives and friends. That way you can see them too provided they too have good computers and connections.