Settings > Network > Check Connection
After this completes, it returns you to the Network > About page. What does it report as your Internet Download Speed?
Came us as "good" 8 MBPS
I'm starting to believe all 3 of the HDMI ports are failing.
Generally, if all the HDMI ports are having an issue, there is usually an issue with one of the boards inside the TV. (hardware issue).
Unfortunately, unless you perform the repairs yourself (replace the defective board), usually cheaper to just purchase a new TV.
That's what I'm learning. Probably gonna go shop for one on Tuesday, when I'm in Tacoma.
Thanks to everyone for your input. It was all a huge help.