Apple TV 4th gen — Vertical lines on TV screen following update

These lines appeared following an update (picture below).

Here is what I have checked based on suggestions:

It NOT the TV screen (The lines do not appear when using only the TV)

It is NOT the HDMI cables (I swapped them; and I also swapped the ports that I was using),

I unplugged and plugged in the power cable ; I removed and re-seated the ethernet cable. I have tried using Wifi instead of ethernet.

I have restarted the AppleTV using the system settings.

I have reset my AppleTV to factory settings.

Nothing worked, but I did determine that is it definitely the AppleTV.

My Apple Care coverage has (naturally) expired.

All I did was allow AppleTV to update automatically.

What is my recourse? Anyone have any other possible fixes?