Email or phone them directly and ask what of "several hotels" they are in. Contact the Engineering Department of two of those hotels and ask about those TVs.

For the heck of it, ask if the TVs have discrete commands. That's more for a laugh than anything, really.... But tell them you intend to buy a lot of them and tell them you'll need to have detailed information on the remote control codes, such as whether they are the same as Samsung, or LG, or whatever.

Never be afraid to call the manufacturer (or importer, which these look to be). The users can give you even better information.