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Check the menu or help button on your cable provider remote, I know that Direct TV has the ability to switch input on the TV
Sorry, there was a problem. Please try again later.To set your Insignia™ 50" Class F30 Series LED 4K UHD Smart Fire TV to automatically start on cable TV instead of the menu, follow these steps: Go to Settings > Display and Sound > Power Controls > Power On and select Last Input. Press Home > Settings > Inputs and select either HDMI 1, HDMI 2, or HDMI 3. Power the TV off and then power it back on to validate the resolution. Patricia | Insignia Support
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