I have a 2024 Sony Bravia 8 which includes a Roku App with service. It has been functioning fine for more than a month. Recently the Roku App has been acting normal until you select a channel. It converts to a black screen for a few seconds and then gives a Playback Error. Occasionally the Johnny Carson TV channel will play, no matter which channel the selector in the Live TV Guide is resting on. I have rebooted everything: TV, Roku App, Router, Modem, but to no avail. Any suggestions?
