When Barry Allen brings Caitlyn Snow in and calls her a scientist, she claims not to be one, saying she's an ophthalmologist instead. An ophthalmologist is in fact, a scientist albeit not the kind they were looking for.
During the opening scene, the TV spot for 52 News is entitled "The Rival vs. Kid Flash", an error since the populace refers to him as "The Flash" since Barry isn't there to take the title. Only Iris, Barry, Joe, and Cisco refer to Wally as Kid Flash.