When Brandon is giving Dylan tickets at the end of the episode as a thank you for letting him use his car, Brandon calls Dylan Luke by mistake. (at approx 43:10)
When Brandon is flipping through Roger's script, the pages are clearly blank.
Brenda gets her SAT score the same day Brandon and all of their friends do. When everyone else was taking the SAT, Brenda was having a biopsy done. She would have had to wait until the next time the SATs were given, and would not be getting her scores at the same time as everyone else.