I have had a 3920X for about a year. Yesterday the video became very fuzzy.
Video playback on Blu-Ray player is fine. So I eliminated the TV as the issue.
I tried all the Roku on all 3 HDMI port. I tried both Monster HDMI cable and the ROKU supplied cable.
I also reset the player to factory defaults and started all over again - with the same result.
Any other suggestions would be greatly appreciated.
Is this on one particular channel/app or all of them? What speed is displayed under Settings->Network->About?