as a driver, both with straight trucks, and with tour busses... I recommend the in-motion satalites. I drive tour busses, both passenger and professional crew/bunk busses. The private "bunk" or "entertainer" coaches have in-motion satalites... no problems with them, or very very VERY rarely do we have problems with them.
They don't pick up "good" in back alley's, where your in a narrow alley between brick buildings. Tour bus drivers find this stuff out. They're made to pick-up in more open areas, like truck stops and open areas. They're great on the road and in rest areas and truck stops. If your passing thru an area with many overpasses like Milwaukee then they'll skip or freeze frame on you when your rolling.
The other ones mounted on PVC pipes mean you have to get out there in all kinds of weather to mount them and position them. The in-motion units consist of a satalite thats mounted underneath a hard dome cover and it revolves/moves constantly to make sure the viewer is getting the best signal.
Surely you wouldn't mind watchin' the nightly news, movies, and/or weather channel, even ESPN while your rolling???
Sometimes when I'm deadheading with a private coach I turn on the
in-motion unit and crank up the volume just so that I can listen to the news or sports and on rare occasion even a movie.
In-motion satalites are like a generator, in the sense that while the initial cost/set-up/installation looks difficult/scarey, one has to look at the long term benefits and cost savings. Check into it/them, and you'll see they're really worth their weight.
However, if PVC, duct tape, and drilling is appealing to you, get the Dish TV or Direct TV.
Stop, get out, position, hope it works right, and relax, when your ready to roll, get out, tear down, put away, and roll.
OR... Stop, get the remote, and relax, when your ready to roll... it is too. In the middle of a good movie? Just keep it on and listen.
You like to listen to Sports Center?
Weather Channel for an hour?
The nightly news on ABC/CBS/NBC?
The late night comedians?
... Any speed, any weather, anywhere.