[ihamner]

Okay, first of all, I am no expert technician or anything but here is a link about Slingbox.
Sling Media - Slingbox

I think it will answer your questions better than I can answer them. You do not connect to your computer at home to watch TV on your laptop in the truck. You will connect to your TV connection at home. If you have satellite TV or Direct TV or Dish or whatever that is what you will connect to with your laptop in the truck. If you have someone at home watching TV then you will see whatever is ON that TV. That is the reason we connect to an EXTRA TV at our son's home so we can change the channels and it won't affect what they are watching. I can only watch so much Bob the Builder. :-)

If you don't have a home base then you can talk with anyone in your family or circle of friends to find someone willing to let you connect to their system at home.