The series about stand-up comedians in 1970s Los Angeles is no joke.
They would go and do open mics, says EP Dave Flebotte of the latter group.
I know Ari Graynor did it.

Credit: Justina Mintz/SHOWTIME
RJ Cyler, he did open mic quite a bit.
Hes the guy that came in pretty raw and just had natural instincts and got better and better.
RJ just took off.
Melissa Leo rules the roost as Goldie Herschlag, inspired by Comedy Store owner Mitzi Shore.
Who does the Oscar-winning actress think is the funniest member of the cast?
Oh, you really want to get me in trouble!
I couldnt answer that question.