Hi BillS7,
Can we check that you are using the correct buttons on your TV remote? On the 360 remote, there'll be a button to turn your TV on and off (the left top button), and also a button to turn your TV set top box on and off (the right top button).
If you mean that you'd prefer not to have your box enter standby mode over night, you can check your standby and eco mode settings by going to Home>Settings.
Hope this helps
Beth