Last year I was going to mount a satellite dish but decided not to. I tried the Slingbox this year and it works perfectly. If your marina has wifi that is. Downloaded the app to the ipad and just plug it into the tv. The picture is smaller than the actual tv? Not sure if there is a setting I need/can change yet?? Just thought I would put this out there if anyone else was looking for a solution for TV on the boat. With kids ages 7,4 and 2 having something to watch is important for us.
I used to just have an antenna but with digital signals, it wasn't very consistent on windy days. This way I can watch anyting from Directv and on my DVR at home along with the local channels. Works pretty well.