Channel 1498, the 4K channel will not allow me to change my video format from 1080p to 2160p. Get the “unable to change” error, I know there is no current broadcast but during the Super Bowl I was not able to watch the 4K channel. I recently upgraded to Gigabit and it hasn’t worked since that upgrade. I was able to view the 4K broadcast on 1498 prior to upgrade.