Iconic composer Andrew Lloyd Webber is making some of his filmed musicals available for free on YouTube. The 2000 West End adaption of “Joseph and the Amazing Technicolor Dreamcoat” starring Donny Osmond will be streamable Friday, followed a week later by the rock classic “Jesus Christ Superstar” from the 2012 arena show starring Tim Minchin. In other entertainment news Thursday, Tony Award-winner Brian Stokes Mitchell has tested positive for COVID-19. The actor and chairman of the board of The Actors Fund announced the news of his diagnosis in a Twitter video,