Your system can sync the power commands for your Bose system and other remote controllable devices connected to your system. You will need to customize the power button to have your remote send power on/off commands to the Bose system, TV, and/or another device with one press of the power button.
Program the remote to control your TV and/or another device.
On the remote control, simultaneously press and hold the TV button and the source button (AUX or the TV, DVD or Cable box icons) of the other device you want to control for 10 seconds until both buttons blink three times.
Something to Note; if a device turns on while the others turn off (or vise-versa), press the sourcebutton for the device that is not turning on or off in sync, then press the SOURCE power button (to the right of the Power button and left of the TV INPUT button) so all devices are on or off. The Power button should now power on or off all devices simultaneously.