I use ROKU express to watch Netflix. Last night getting ready to watch I turned on the tv and used the remote to click on all the tabs to get to the movie section and the remote just stopped working (inter-acting with tv)? Thought the batteries were dead so I replaced them. No response from remote. Turned off the tv and restarted. Now all I get is the pink purple picture that slowly moves to the right with a couple ROKU buttons to push but no response from remote. Can my tv lose a connection to my wireless? How can it go from working perfectly to nothing?