"Caroline In The City" and "Cheers" are in a very long line of cross-overs, so their universes are the same. However, Mandy Ingber's characters in both shows are different.
Risa: (about Del) Doesn't he have the best sense of humor?!
Arnie: I had a sense of humor once.
Ruth: You had a prostate once, too!
Annie (to Del): You're pretending to be Jewish just to get a date?
Richard: You pretended you were nice to get a date!
Del (about Risa)< /i >: She is the most amazing woman I've ever dated.
Caroline: Thank you, Del!
Richard: You want me to stand outside her window and be your Cyrano de Berkowitz?
Cyrano de Bergerac was a french dramatist and duellist. In his autobiographical works he is featured with a large nose.