Genie RC73 remote problem - DirecTV

I programmed the remote for my Samsung TV. After I program it and test it using the volume up key, it works, but when I select done or oherwise exit the programming screen, the remote won't adjust volume. It turns the TV on/off, but no volume adjustment.

This question, "Genie RC73 remote problem," is about DirecTV channels, programming, equipment, and sports.