Thank you for getting back to us with the model number. On the Sony remote, we'll want to press the SYNC MENU button and ensure that BRAVIA Sync Control is set to Off. This will prevent the TV power from turning off when you turn off the Bose system.
Thanks for getting back to us. We'll get this resolved together. HERE is a link to Sony support page that illustrates how to turn off the CEC functionality (known as Bravia Sync Control on the page).
still no luck with my soundbar turning off my tv
very disappointed with Bose Australia's back up if u encounter a problem
their installlers want between $150 and $200 to come to my place'
wake up BOSE
you have a great product but your after sale service SUCKS
If your TV is still turning off by turning off the system, let's take a look at your other components to turn off the CEC functionality. That is the root cause of what you are experiencing. Can you provide the make/model of the other devices connected to the TV and/or the soundbar via HDMI?