Universal's Cinematic Spectacular - 100 Years of Movie Memories

I’m planning a trip in Sept and it seems that this show is not shown every night. What was the schedule last year for Sept?

It is on most nights. Any night USF closes at 6 it will be cancelled. These are generally hard ticket events (eg HHN) or private parties. Other nights where there are concerts scheduled it tends not to be on either. So it varies year to year.

Correct, CineSpec is not shown on Halloween Horror Nights.