And yet the OP's doesn't work and this thread has begun.

Plus, he is discussing an OLD command for the XD that does not work for a NEW device.

Care to rephrase your "All roku" statement. It seems suspect to me that the Roku 3 would not have the same buttons on the remote for things as important and commonplace as netflix and pandora whether or not it had the ability to accept the code. I guess the only way to know would be to update the firm and to fire the commands from another remote to make sure it isn't the pronto. Looking at in Scrutinizer or IR manager, we see it is a fairly common carrier frequency and protocol that the pronto, especially such a late model, should have no difficulty handling. Of course, I may be wrong.