Supernova-Help needed with TV's

[Mesavista]

We just purchased a slightly used Supernova 6400, 2008. We purchased it at a dealer who had it on consignment and could not give us much of a PDI. We cannot figure the TV system which is really frustarting my teenagers!
We can turn on all TV's put a DVD in the player and see it on all or one TV, but we only have the surround sound in the living area, none in the bedroom. We have sound from the tv in the bedroom for TV but not DVD. So we cannot watch a movie the bedroom and hear it. Also it came with tons of infared headphones but none of them seem to do anything. They were all wrapped up and never used by the original owner. Yes we put in new batteries!

The TV manuals don't seem to say anything about surround sound or headphones, can anyone help us? Oh and my son looked in the back of The dvd payer and there appears to be enough speaker wires exiting the unit.

Thanks,
Mesavista Mom