It happened three days ago. All the movies I used to enjoy lost the video.
If I push Triangle-I-I button on Roku remote, I can see the movie frames above the horizontal line.
I called Roku 2 times, removed and added YouTube channel twice.
Rebooted the modem, the Roku, checked the extender.
Used YouTube without signing-up, and with it.
Used various HDMI TV ports.
Unplugged and plugged back the SONY Bravia.
What is the next step, please?