Find your match below the stream in the schedul.
Wait for the red (x) in the field to move away.
Click on the stream to activate fullscreen and sound
Click more time on (Click here to unmute) for option arrow/sound .
Remove all tabs and by PDF on browser click on. (x).
Popup image: At the stream of schedule.
You will see this in the stream.
Click on that and then double click on that popup window for full screen.