The IR thing sounds logically to me;
I once had an IR remote for a lamp that used a close frequency to the century's door open IR logic.
Activating it opened the door sometimes although there is no "official" BEOlink-command to open those remotely. It was definitely an interference.
At least that's an explanation for the doors; not sure about the station switching; these are totally different frequencies...
Good luck,
Gunther