Something is going on with my remote and or my Roku receiver. I can change to a channel and set the remote down and a few moments later the channel will change on its own or the video will pause on its own. I currently have to hide my remote in the couch after I change channels or even change the volume
If hiding it in the couch fixes it then it must be an IR remote and there must be a stuck button. If you point the remote at a cell phone camera (or any digital camera) do you see a bright light? You should only see a light when you press a button.