Yes. It's when she comes back from Bosnia, filming the Crows Have Eyes III: The Crowening. It's the trailer for the film. She makes the family watch it at the beginning of the episode and the WiFi is bad and it keeps loading an advertisement. She asks John to pull the curtains closed so they can see better and then proclaims, "John, please, it's practically obsidian in here", so he opens them again. You actually see the trailer when she forces the Jazzi-Gals to watch it.
Schitt's Creek is the actual show. Moira Rose is an actress in the show that plays Dr. Clara Mandrake in the psychological thriller, The Crows Have Eyes III: The Crowening. Although when she auditions for the role, it's the sequel so it should have been the second one?