Just looked at the RF20. Looks like it will do it, and your labels will be on the LCD screen.

But you have to program it from scratch. I didn't see any way to duplicate the programming on a second remote.

I'd get them three MX850s and program them all the same. Two stay in the guard's desk with no batteries inside, and when the first remote is destroyed in a fight, there will be no down time before they can put on Maurie and watch OTHER people throw chairs. Supply them with one remote and they'll be very unhappy with you when something goes wrong with it. The budget for three remotes will be less than the damage that might be done when no TV is available.