No, you don't need a satellite to watch tv. There is an antennae already on top of the pod. somewhere behind the tv is a plate where the cable is connected. On this plate there is a small red button. Push the button in, the light comes on and your amplifier is ready. turn on the tv and do a channel search. It will find all of the available channels.
Remember to turn the amplifier off when finished. It is a battery drain, although small, it is still a drain.
If the campground has cable available, there is a cable hookup somewhere on the outside of the pod that is covered by a black rubber plug. You should be able to attach a cable from your pod connector to the connector supplied by the campground and the cable feed is complete-maybe!! sometimes, the installer forgets to hook up the end of the cable behind the plate at the tv. If the cable doesn't work, remove the cable wall plate and connect the incoming cable to the wall plate.
As to the weight distribution hitch, we have used an Equalizer 4 point hitch that has integral sway control. We use the 6000/600 unit and have used it on 2 different pods with great success. It makes towing much safer as well as easier.
Good luck and safe travels.
Vann