passengers watching tv while moving in navion 24G

I would not suggest doing so if the TV is where the drive can see it. There are state laws against disabling the safety feature. http://www.ce.org/Consumer-Info/Car-Electronics/Got-It/State-Laws-for-Electronics-Use-in-the-Car.aspx#11

You can be pulled over and given a ticket if law enforcement sees the front TV on.

As sdianel said, the majority of states have a law against a television or video screen being visible by the driver while driving. (Some states actually say it must be behind the back of the driver's seat, rather than simply not visible to the driver, but I would hope that police officers would use a little common sense where the screen is not behind the driver but is otherwise blocked from view...even if such hope is misplaced at times.)

Typically there's a relay for the outlet for the television that disables it when the engine is running. Disconnecting or bypassing this relay will defeat it, as would removing the wire that controls it. Often times, only one of the two AC outlets at the TV location is switched, so simply plugging the TV in the other half of the outlet might work. (This is kind of assuming that the TV is 120V AC powered. If it's DC powered, the idea is probably very similar, but you might not have two halves of an outlet to plug it into.)

Broadcast television reception is basically impossible in a moving vehicle; the current digital broadcast standards just don't work well when moving due to changing multipath interference and momentary drop-outs and so forth. Other video sources are not so affected, of course.

It's illegal in California.

CVC 26702 states:

27602. (a) A person shall not drive a motor vehicle if a television receiver, a video monitor, or a television or video screen, or any other similar means of visually displaying a television broadcast or video signal that produces entertainment or business applications, is operating and is located in the motor vehicle at a point forward of the back of the driver's seat, or is operating and the monitor, screen, or display is visible to the driver while driving the motor vehicle. (emphasis added)..Dennis

Our RV has a TV in the back. I have used it to entertain my nephew on trips down I95. But we can only watch DVD's because of the type of antenna I have. To watch local channels or satellite tv you would need an antenna that plots your moving position against the fixed location of the broadcasting antenna.
No different that the entertainment systems offered in family minivans. The law mentioned above could be an issue if the screen is located in front of the driver. Some Class C's make use of the area over the driver as an entertainment/storage area instead of a bunk.

Legal or not there is also the potential problem of motion sickness when watching TV, ipads, etc. in a moving vehicle. The brain gets confused between the vehicle movement and the solid picture.

I have read in a moving car for 70 years without a problem. I know some cant but most people can. I guess you are one of the cants.

DrewE wrote:
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Broadcast television reception is basically impossible in a moving vehicle; the current digital broadcast standards just don't work well when moving due to changing multipath interference and momentary drop-outs and so forth. Other video sources are not so affected, of course.

100% correct, one of the issues for the "limo" people is that TVs really don't work any more

We do this in our RV. The TV is beyond the cab and i can't see it from my seat. I have a streaming system (using Plex and a Roku) that allows my kids and wife to watch Movies I take with me while I drive the RV. I listen to my Music while they watch something. Makes those long stretches of driving go by much smother. We just did a 7600 mile cross country 3 week trip and my streaming system kept the whining to a minimum.

When our kids were young, we provided them kid's workbooks and coloring books to occupy them. This analog approach kept them occupied and reduced the "are we there yet" inquiries. Stopping every 100 miles or so and letting everybody relax on solid ground, and for kids to run around is quite effective. Some kids and teens should be left behind with tolerant grandparents.

Motorhoming should be different than everyday TV/game dominated life at home, IMHO

I agree look out the windows and really see something worth while. Not long from now won't be much to see the way we are going about destroying the world.:(