FOX FALL 2020 PREMIERES (All Times ET/PT, except where noted) Sunday, Sept. 13 8:00-9:00 PM ET/ THE MASKED SINGER (Special Season Four Sneak Peek) 5:00-6:00 PM PT Live to all time zones Monday, Sept. 21 8:00-9:00 PM L.A.’S FINEST (Network Television Premiere) 9:00-10:00 PM FILTHY RICH (Series Premiere) Tuesday, Sept. 22 8:00-10:00 PM COSMOS: POSSIBLE WORLDS (Network Television Premiere) Wednesday, …