4K 55” 6 series TV screen turns off randomly for 2-3 seconds when watching cable tv (Comcast)

[JoelG83]

My 55" 4K 6 series turns off for 2-3 seconds at a time randomly when watching cable tv. 

[AndrewL]

@JoelG83: What method are you using to connect the cable box to your TV? Do you have access to another cable that you can try to see if the issue persists? Similarly, does the issue occur if you connect to another source?