So apparently my 5+ year old Panasonic LCD tv's remote will control my nexus player. My son started hitting play while YouTube was paused and the video started playing. Upon investigation the return button acts as a back button, the arrow and enter key work as intended and the play, pause, ff and rewind keys all work normally in Netflix and hulu without issue. I can't find a key that works as a home key but it worked with no issues for the other functions.
It has been quite a while since I worked in an electronics store but IIRC all Panasonic remotes are universal for the brand so this may be true for all Panasonic remotes. Other brands should try this out before replacing your remote, if you are having issues with your current remote.
I am sure this has to do with the HDMI specs but I didn't think mine would do this purely based on age.