Plasma screens do suck down power like you wouldn't believe. You'll be drawing a lot of amps if all your equipment is going onto one circuit. I'd say you should have at least 20 amps going to that circuit if you can't split anything up. Check your breaker panel to see what type of breaker controlls the outlet in question. Keep in mind that you can't just swap out the breaker without also upgrading the wiring. A 20-amp circuit requires a minimum of 12-gauge wire to meet code. A 10-amp circuit requires 14-gauge.
