Hi everyone. I am an a/v technician and recently i was hooking up a bose lifestyle system and encountered a problem. i hooked up all the speakers to the bose subwoofer provided and when i played a dvd all the speakers were working properly. but when i switched the input to tv one speaker would not work. thinking it was a bad input connection on the subwoofer i then hooked up the speakers directly to the yamaha receiver that was provided. and the one speaker still didn't work. the dvd was obviously a dolby digital 5.1 broadcast and the tv show was also broadcast in 5.1. so the speakers should have worked for both formats. my question is why would all the speakers work on dvd mode, but not on tv mode. doesn't make any sense to me, i have never experienced this problem before. this just further makes me hate bose home theater systems.