Greif staged both the original off-and-then-on-Broadway production (1996-2008) and a 2011-12 Off-Broadway revival, and he’s now directing Rent: Live, airing this Sunday on Fox. Diep Tran talks to director and cast about how they’re reconfiguring the show for a live audience of 1,500 plus a TV audience they hope will be in the millions. — American Theatre