I watched Garrison Keillor's 30th Anniversary Prairie Home Companion on DVD. What a magnificent sense of producing a show he has. And he does it live. No chances to go back. Most people watching miss the production aspects. Every detail has to be worked out prior to performance. The location of every instrument, headsets, charts, texts, stands, seating and standing arrangements, microphones, set dressing, and on and on. People have to know when to move so they are in the right place at the right time. Sound men are turning microphones on and off and balancing them up and down, light cues change the lighting. There are no mistakes so there is an exquisitely made plan. No time is lost. Each piece becomes the next. And at the end of two hours it is over. Keillor does it every week. It's a big job for a lot of people.