I've encountered a few Marriott properties that had the new HDTV Flat Panel with plug-ins availabe. Although in theory it is an excellent set up and system, the big problem is that Marriott restricts certain functions of the HDTV Flat Panel mainly being able to control the aspect ratio. So unless you are getting a High Definition TV signal, you will have to watch all analog TV programs (which is what you will mostly have a choice of) and depending on the DVD in stretch mode which personally is one of my pet peeve's.

Why the hotels won't let the view have full control of their viewing experience is unknown to me.