I have noticed something odd lately. Sometimes when my Mits is off I notice that the power/timer light is blinking. When I turn the set on, the channel has reverted to channel 3 instead of being on the last channel that I had the TV set to. It is a steady blink...blink...blink that is about one second apart. If I unplug the set from the wall and plug it back in, the blinking goes away only to return later that day or the next day. Any ideas as to why this is happening?