Cannot change input to get to Roku or PS3 - DirecTV

I cannot change the TV input from the tv to use other devices. I've tried holding the input button but nothing happens. This was not an issue with my other provider so it's not the tv. The volume button does not work with the tv (no sound bar or receiver). Again, another issue I didn't have with the old provider. Please help.

This question, "Cannot change input to get to Roku or PS3," is about DirecTV channels, programming, equipment, and sports.