Flatscreen TV replacement and vibration

32" Vizio using a PC monitor desk mount
5 yrs thousands of miles, still like new, Phillips DVD player sat on the desk for all that period, still plays like new
just replaced it with an LG Blu-Ray player, so i can have that option to rent or buy BD movies

Don't know where you live or where you travel and when, but this may interest you when it comes to LCD TV's and low temperatures. Cold temps on TV's

No issues with our Samsung and Sony HDTVs, there are RV specific flatscreens but most of the RV manufacturers don't even use them due to their high costs.

Samsungs have worked for us for years. Good color too.

One thing that we did not mention is that your old crt tvs may not be able to receive digital signals. If not, if you keep them, you will need digital-to-analog converters for each set. Easier to replace them and get all the advantages.

I have replaced three old crt televisions with lcd flat-screens, and have had no problems yet. Just mount solid so that the tv itself does not bang against anything, driving and road vibration has been no problem. Impacts hard enough to jolt other things, and break things off walls are of some concern. Usually the tv is the least of concern in that case. I have used two Visios, and one no-name offbrand. All are still working well. Worry more about your microwave than the tvs
For cost, go with the best deal, you probably don't need all the expensive options, and if something does go wrong, then much less expensive to replace.

Big advantage is that the flatscreens are much lighter, easier to provide good support for, use a lot less power, give a much enhanced picture, and will receive the OTA digital signals. The reduced weight means that they are much less affected by vibration and bumps, as there is not as much really heavy stuff to jolt. Just as long as it is firmly secured.

I've just got a regular Philips 32" that moves from S&b to fiver when we go. Rides on the bed till we stop. Another smaller generic one that's mounted and stays in the bedroom and travels. No problems with either one. I think you can find ones "specially made" for rv'ing, but, of course, they're more expensive.