Cheers Wiki

Abnormal Psychology is the fourth episode of the fifth season of Cheers.


Diane thinks that Frasier is masking romantic feelings for his colleague, Dr. Lilith Sternin, so she launches a plan to fan the flames of love. Meanwhile, Norm and Cliff reluctantly join Woody for a fishing trip.


Recurring / Guest stars:


  • During the opening, as Cliff and Norm are walking out of the bar enroute to a gladiator film festival instead of accepting an offer to go fishing with Woody, Norm delivers the Latin phrase "De gustibus non est disputandum". This can be translated as "there is no disputing matters of taste".
  • This episode marks the first time Norm is shown entering the bar without saying hi to everyone and everyone yelling "Norm!" This was due to the fact that Norm was deep in conversation with Cliff as they entered.
  • Frasier and Lilith share their first kiss in this episode.
  • After the broadcast, Sam asks the bar for the box number. One of the patrons calls out the zip code instead.