It appears that the common choices for satellite TV in a motorhome are Dish Network and DirecTV. However, I had a fellow tell me last night about the advantages of 'Free To Air' satellite. His claim is that 1) aside from the equipment, it is 'free for life', and 2) there are about 600 channels, including many of those included in Dish Network packages. Anyone have any experiance with this? Any reason this would not be appropriate for a RV?