Over the course of the series, the phrase, "Hi, Bob" was said 256 times. Howard Borden (Bill Daily) said it a total of 118 times. Dr. Jerry Robinson (Peter Bonerz) logged 41, Carol Kester (Marcia Wallace) 36 and Emily Hartley (Suzanne Pleshette) 17 times. Ellen Hartley (Pat Finley) said it 5 times, other minor characters or guest stars said it 38 times, and Bob Hartley (Bob Newhart) even said it once himself.
The "Sam and Janet Evening" joke would resurface in the Newhart episode "The Visitors"; in which friends of Dick and Joanna Louden named Sam and Janet would habitually use it to announce themselves.
The episode features Morgan Fairchild in what may be her first-ever television guest appearance.
In this episode the Hartleys are celebrating their 10th anniversary, but they just celebrated their seventh anniversary in the previous season's "Taxation Without Celebration".
After Bob pronounces his title Dr. as "Durr" during the famous "Moo Goo Gai Pan" segment, you can hear a studio audience member say "Durr?"
Cliff Murdock (Tom Poston) says he's been working and living in Vermont since 1957. Of course, this is also the home state of George Utley, the character played by Tom Poston on Newhart.
Carol says that growing up she was "tall and thin and red-haired." But in other episodes she has said she used to be very overweight.
Phil's excuse for sneezing during Jerry's serves in last year's tournament is that he has hay fever. Jerry says they play on an indoor court. Assuming they are playing in the same place this year, Carol shouldn't have to worry about getting a sunburn indoors.
We learn that Carol lives at 2601 Grace Ave. Apt. 2J.
Blooper: When Bob's office is first shown in this episode, the office number is 715, but all other times in the episode, the office number is 751.
Early in the dinner party scene, the shadow of a person is seen moving across the couch, but no one in the scene is on that side of the room.
Inconsistency: If Emily had spent the day "cooking, cleaning and waiting for her husband to come home" as she states in the opening scene, wouldn't she have noticed something going on across the hall as the burglars cleaned out Howard's apartment?
You will notice in this episode that Bob's office number changes from 715 to 751.
In this episode we learn that Mr. Carlin was Bob's first patient and that Michelle has been a patient since she graduated from high school.
Early on the episode, Jerry admits that he failed to get tickets for the sold out Bears-Packers game, then suggests driving all the way to Peoria to watch the game. Granted, it was not uncommon to black out football games back in the 70's and 80's, but if it's Bears-Packers, it's being played in Chicago, and the game is sold out, why in the heck would it be blacked out? If you live in Chicago like I do, that would not make sense at all.
In act one, scene three the Hartley's apartment has the old carpeting.
Jerry slept on the couch in the living room. In episode #6, Carol slept on the sofa-bed in the den.
Emily said that the guest bathroom is only a 1/2 bath. In episode #12, everone goes into the guest bathroom when Howard and Carol have a fight, and the bathroom has a bathtub.
Howard said he was never in Bob's office before. He was in Bob's office in episode one, Fly the Unfriendly Skies.
This episode was obviously filmed back at the beginning of the series. Notice how the steps to the front door have changed back to three from two. Also, Emily and Carol have their old hair styles.