There are two types of dome antennas In Motion and Stationary In Motion allows the receiver to be used while travelling down the road. Stationary is for when you are "stationary". Both of these will automatically find the satellite when you turn on the receiver.
The crank up will require you to manually find the satellite. Not difficult but not as easy as the dome.
OTA channels can be purchased when you order your Dish service package. You will receive the OTA channels from your receiver.
You will be able to switch your TV input to use either the Satellite service or the cable at the campground for service or if the Bounder is equipped the roof OTA antenna.