New House Has Breaker Issues?

We moved into a new house 1yr ago. We've sporadically and now recently, more frequently we keep losing power in the master bedroom, especially when the TV/Playstation are going in the living room (shared wall). It has tripped when only the bedroom is in use as well. I called home builder (KB) to only have them tell me thattoo much is on the circuit. So, this smart house we designed in their studio can't support the power needed to run the house sound and LR surround sound, plus have a bedroom TV on (Roku)? Which are labeled as MBR sprinklers on the breaker. Sorry for the rant.

I just want to know if they have the wiring done wrong. I don't think LR and MBR should be on same circuit - especially where the TVs must be plugged in.