i am thinking to buy TATA SKY

Hi
i am thinking to buy TATA SKY. I dwell in Ludhinan (PB). I have some queries :
1. I have TV BOX TV tuner Card to connect with my PC.
Can it Connected ?
2. List of Free Channels.
3. What is meant by Free Channels ?
does it mean that if i am unable to recharge my connection, enven then these channels will not be stopped?
4. If i fail to recharge my connection which channels i can watch on my TV through tata sky ?
or it will totally stopped ?
pls answer my queries.