Roku TV setup for cable TV

pygocentrus​ -

You can set the input to be connected when your Roku TV first powers up via: 
Settings > System > Power > Power on 
You can choose a specific input or have it return to whatever was the last input used. 

Welcome, pygocentrus​ 

It appears that you wanted to set your Roku TV to automatically start on Cable TV. Try following these steps:

1. Connect your cable receiver to an HDMI input on the back of your TV
2. Turn on both the receiver and the TV
3. Use the Directional pad on your remote to select the correct input
4. You may need to wait a moment to receive a signal. If you need more help, contact your provider.
   
   

Let us know if that works!

Roku Community team