I have several Roku Streambars. When they connected to the TV a shortcut was added to the home screen that can turn off the TV. This is great but it requires user input. There's no point to manually scrolling to the shortcut and cliking on it if you can just pick up the remote and hit the power button to turn off the TV.
A better feature would a timer on the Roku sreaming player that after a specified time would activate the shortcut, turn off the TV and stop all streaming content. This would save bandwidth and electricity by powerind down the TV and roku player..
Please consider adding this as the shortcut is already there and it works.