You do not hook up TVs to Sat Antennas. You hook up receivers to Sat Antennas. The capabilities of the Antenna and receiver are important. I believe the (dome) types of antennas you are looking at only acquire 1 of 3 satellites at a time. This means that, as long as there are 2 coax out and your either have two reciever or a reciever with two tuners, you can watch different channels on different TVs, AS LONG AS they are from the same satellite. If one program is on sat 110 and another on sat 129 (W. Arc) you can only watch one.
Not all packages/services can use all equipment. Understand the package.
Some recievers only have 1.
We have had Dish for over 5 years and have no problems activating, paying or acquiring channels, except when a cliff or trees are blocking southern view).