Napkins, plates, etc. disappear from the table as Blanche is talking to Dorothy.
Frank tells Blanche that Dorothy didn't know he was a priest. In the next scene, he tells Dorothy that he assumed she knew.
When Dorothy is in the kitchen getting the fresh pot of coffee to take into the living room, she puts the "hot" pot directly on the counter after filling the cups.
In the gymnasium when Dorothy is talking to Frank, you can see mountainous chaparral in the window background. This does not exist in mostly-flat Florida and is much more common to California where the show was filmed.