I don't know how it is now but the assistant stage manager had to understudy several parts. You had to be ready to go on at any time if the actor couldn't make it to the play. I didn't think anything of it.
Networks decide who will have a chance to do shows, but it is the viewers who make the final decision of who stays and who goes. I am very fortunate, in that the television viewers of our country have decided that Bob Barker can stay.

