When Mrs. Doyle is telling Ted about the profanity in the book, several of the words and phrases were not in the original script but were introduced by Pauline McLynn during filming. You can see Dermot Morgan trying not to laugh at her last line "Ride me sideways", which he hadn't been expecting.
In the episode "And God Created Woman (#1.5)" Polly Clarke mistakenly signs her book and spends the entire episode referring to Ted as "Father Curley". In the episode "The Passion of Saint Tibulus (#1.3)" Bishop Brennan states "And that's where you and Larry and Moe come in", a reference to "The Three Stooges". The third Stooge's name was Curly.
Lowest rated episode of the entire series