Have you a TV which changes channels or goes loud or silent on it's own.
Could be, it goes on or off on it's own, sometimes when you are not even in the same room.
Could it be a strange phenomon or is it likley to be a four legged cocker who thinks that hiding the remote from his humans will get him the attention he feels is lacking. It can usually be found lying in the undergrowth under a cockers tum

Any other strange cocker phenomon going on out there I wonder!!