BroadwayHD, a repository of filmed professional musicals, plays, and operas, is offering a week-long free trial during the shutdown, as well as occasional streaming events that don't require any sign-up at all! The library includes regional theatre productions as well as Broadway and West End productions of major musicals (including She Loves Me starring Jane Krakowski and Zachary Levi), all of which were filmed live and previously broadcast on PBS, in theatres, or elsewhere. It's, quite literally, Broadway in your living room.
Where to watch: BroadwayHD