Help & troubleshooting for channels on your Roku device, including adding/removing channels, logging in to, authenticating, or activating a channel, channel-specific playback issues, assistance contacting channel publishers to report issues, and adjusting channel-specific settings.
I keep having the same issue. I will be watching Antiques Road Show Channel or PBS or pretty much any other channel I switch to and it zooms in so that you cannot see the whole picture. I unplug the device and plug it back in and it is fine for about 3-5 minutes and then it reverts to a zoomed in mode again.. i have tried all settings and factory resetting the device and still have not been able to resolve the zoom in issue. I have a Vizio 4K HDR TV and none of the apps on there have any issues. The main device with the issues is the Roku Ultra 4K device. I don't know if i would recommend getting another Roku as they seem to be poorly supported Roku Ultra (4660, 4661, 4662 series) @roku_support