The best part of Cheers is Carla and Diane shooting disparaging one-liners at each other. Or, rather, Diane saying something innocent and Carla shooting back an inappropriate retort.
Diane: Last night I was up until two in the morning finishing off Kierkegaard.
Carla: I hope he thanked you for it.
The other best part is watching Carla laugh at Diane’s many small misfortunes.
Achieve Carla’s three looks here: