I hate season 2 of TNG for one reason… Dr. Pulaski. Crusher is replaced by this idiot jerk doctor who’s racist against Data (being an android) to emulate a McCoy/Spock style thing, but it just comes off as Pulaski being a racist jerk. After season 2 Crusher comes back, so all’s good from then on.
I welcomed the character if only because she brought some interpersonal conflict into a show which had a dearth of interpersonal conflict.