In the “Scheduled” screen, this problem started just now. I am using the Chrome browser in Windows 7. Previously only the shows actually scheduled appear. Now there are empty titles for all shows I have previously scheduled. The screen is very cluttered with all these irrelevant titles.
That feature has been requested many times, so it looks like it is finally implemented. If you have any shows that you want to get rid of, just unschedule them, and they will go away.