Interesting that you bring this up. Years ago I got a digital 19" monitor for my pc which also can receive video and TV. Can't recall the brand. We use a cheap combi DVD cassette player and the inverter, of course. Seems to work fine. We have to take out the gear and set it up and stow it away. All this is a minor inconvenience.
Recently we got a 40" HDTV for our home but it might one day have to go on the boat if we move aboard. It seems immense, as it would take up the entire bulkhead behind the settee and would have to be fixed mounted.
By the time we move aboard the technology may have advanced quite a lot. So this may be a dumb issue.
Has anyone mounted these immense LCDs in boats with any "success"?