I notice on my TV set up menus there is an option to select which speakers are used (TV or external).  Once I have hooked up my tuner amp, does this mean I can connect the amp so that when the TV is switched on, the amp is automatically (via Bravia link) turned on and set to put the TV sound through the main speakers, then goes offwhen I switch the TV off?  The equipment in question is  - TV  KDL-40EX503. BluRay - BDP-S370, and Tuner Amp - STR-DH510.    Thanks!