The startling “cold open” for a documentary about 50 years of “Saturday Night Live” music is proof that a musician ... like R.E.M. and Morris Day, Rick James and Duran Duran, Hanson and Cher.

Saturday Night entertainment programme presented by James Young in front of a live studio audience. James Young plays a whole host of characters such as Orange Lil and Big Derrick.

Lady Gaga, Bad Bunny, Arcade Fire, The Roots and David Byrne are among the scheduled performers for the event, hosted by ...