Two comments about polarity: 1) polarity is important to maintain for TV transmission synchronization between the TV camera and the TV set. 2) many new electrical codes require that the outlets be installed "upside down", that is, the grounding plug is now on top. It was explained to me that under the old standard with the hot/ground plug slots on top, there was the (remote) possibility that if the plug was not pushed in all the way, it was possible for a metal object to fall down behind a dresser or a stand and end up shorting the hot/ground terminals. Point being, that the large slot is not always on the left! Happy Tunes!
