In the episode with Cliff Clavin from Cheers, an interviewer wants to interview Joe, but Brian is more interesting. Near the end, Joe tells Brian on the phone "I wish I could be more like you". Brian tells Joe that he switched the phone to a game, and after Joe hangs up:
Brian: Sometimes I wish I was more like you too.
The episode "Life Could Be a Dream" in which the four dig up a time capsule with letters they wrote, predicting their future. Helen reads hers, in which she is a famous musician. At the end, it is revealed that she made up the letter, and her real letter said that she would marry Joe Hackett.
The series ends with a double instance: After Brian decides to quit the airline and go off to a tropical island, Helen receives an opportunity to study music in Vienna. Joe tells her she should do it, even though going with her means giving up the airline that's all he's ever wanted, because he's had the thing he wanted all this time, and it's Helen's turn to get what she wants. At the very last minute, Brian can't stand it and forgoes the tropical island to run the airline for Joe until he gets back.