There have been posts in other threads about the grainy picture quality of watching DVD's in the MagnaDyne system.
My experiences so far have been:
watching it on channel 3 when there is no "over the air" channel 3 (GRAINY, plus the effort to tune the channel in....)
watching it on Channel 3 when the cable system at the RV park doesn't have channel 3 (GRAINY, plus the extra effort to tune the channel in)
Ok, right now I'm at at an RV park in Oregon that actually has a channel 3 as part of their cable system. Guess what, I have a beautiful picture on both the front TV and the bedroom TV (which are connected to a "switchbox). The DVD picture is even better and clearer than watching the actual channel 3 on cable which is digital being forced down to analog.
On the other hand, the picture is still a little bit better when watching it on the middle TV which is independent and has a separate DVD player.
So, as I think I have read in other posts, it is slightly dependent on whether or not there is a channel 3 existing.
Also, in my first two examples, I found that I had to use either the TV sound or the MagnaDyne sound, couldn't use both, or I would get conflicts. Since I'm in an area where there IS a channel 3, I'm not experiencing the "conflict" when I use both TV sound and MagnaDyne sound. But I like the MagnaDyne sound better, as it comes through all the ceiling speakers.
Sunseeker 3170, and all three of my TV's are the Jensen 12 volt, which I have been pleased with so far!
When I ordered my 3170 (which has three TV's), I tried to tell them to not install a TV in the computer zone since I was getting the computer desk and not the kiddies bunk bed, why would I need a TV there....... BUT!!!!! I find I do use that middle TV that I thought I wouldn't need.......