Just an added Tid Bit. We live in Canada and experience some colder temperatures in the winter. I inquired if this would affect an LCD. I was told no by the techs at Future Shop. They said as long as you don't go out to the RV and turn on the TV in cold temps. In other words if it is -10, don't turn it on. Warm up the coach first or wait till outside temp is warm otherwise you will have an issue.
I asked if leaving it outside would void the warranty and was told no.
I'm just in the process of adding a 26" Toshiba LCD to the bedroom and a 37" LG LCD to the front overhead.