http://www.airforums.com/forums/f450...ly-158010.html
Over the air and sat are 2 different animals.
Satellite on RVs is going to go the way to the dinosaurs IMO.
If you want an alternative to over the air you should look at DIRECTV Now - which is 100% over the top (internet streaming) live TV. 90 or 100 channels or so.
If you have AT&T mobile service there is no charge for data use associated to streaming DIRECTV Now TV. $35 bucks per month, available on Apple TV and other platforms, etc. etc.. just use your AT&T phone as a mobile hotspot and you are good to go with no limit on data usage when streaming DIRECTV Now TV content.
If all that sounds too complicated stick with buying a new $45 antenna per the link above