NBC's Saturday Night Live host and musical guest Timothée Chalamet and some members from the cast checked in from SNL read-thru.

Instead of chronicling the “eras” (hasn’t that already been done?), the Peacock documentary plucks out concepts and lets you see how the sausage is made.

You’ve gotta pump massive iron to build massive muscles, right? Well, not really. “There's a lot of lore around this routine ...