Last I heard Roku didn't make any claims to control receivers. There are some fancy programmable remotes out there, but if the Roku is a stick, then it has no IR receiver. However, since a Roku Express is very cheap, (cheaper than some fancy remotes) you could just swap one of those in for the stick.
Personally, I have always just used each thing's remote to control each thing. My parents have always liked more integrated remotes with one button to turn everything on and off, however, they eventually get something out of sync, and this is a "disaster" that I have to fix by going over and asking where the original remotes are.
