The Bob Newhart Show: Season 4

Bob's college roommate ('the peeper') visits Chicago and shows he has not lost his school age demeanor. He keeps extending his stay, causing friction between Bob and Emily.

Howard is ready to propose to Ellen. She accepts, but then each of them wonder if they are ready for marriage. Bob & Emily celebrate their wedding anniversary and discuss the gifts each receives.

Bob Hartley resists his therapy group booting out a caustic patient, when he doesn't show up with the brain cake at their birthday party for Bob. That's only part of Dr. Bob's bad day, but it gets worse when Emily isn't sufficiently sympathetic. To unload his anger, Bob uses reverse psychology on the often-missing Mr. Gianelli by calling him, shouting that he's out of the group, plus fired as a client. Bob expects the contrary Mr. Gianelli to return to group, contrite for his disruptive behavior. But before he can, Mr. Gianelli, a fruit vendor, is crushed to death by a load of vegetables.

Emily starts to feel she and Bob are in a rut. They start trading jobs to shake up the routine. Each find it is not that easy to pick up the other person's job. Carol is also bored with her routine.

Bob's therapy group for overweight people has one negative member, saying it is thin people who have the problem against their weight. Bob asks Carol to sit in on the meeting since she used to be heavy. Carol is asked out by a heavy man.

Emily has a penchant for setting up couples and Carol is her next target. However, when Carol's sudden romance with Larry leads to marriage, no one seems to believe that Carol will actually go through with it.

The Hartleys agree to host a French colleague and his wife when they visit Chicago. Things do not go as smoothly as they planned.

Bob starts to question his profession thinking he has wasted the last twenty years of his life. He visits his former professor for some reassurance.

Bob's asked by Ruth Corley ('Jennifer Warren'), to appear on her morning interview program. After taking up the charming, and demure-sounding Ruth on her offer, she turns into a cut-throat host, on-air, who has Bob in her clutches, and he lets it slip that one of the patients he's treated, is a politician, and everyone begins guessing who that person could be.

Bob wonders why a colleague has more free time than he. Frank says it is because his patients control his time instead of Bob setting specific office hours. Bob and Frank form a partnership, but Bob is uncomfortable about the setup.

With Emily out of town, Bob spends Thanksgiving with Jerry and Mr Carlin watching a football game. They proceed to get drunk and try to order Moo Goo Gai Pan from a Chinese restaurant for dinner.

Bob's mother stays with Bob and Emily while her house is being painted. Bob has issues with her meddling and treating him like a child.

Bob's sister, Ellen, wants to write a story for the newspaper about the doctors in Bob's building.

Ed and Janet are a married couple who also teach at the same school as Emily. They all assume Ed will be named the new vice-principal and Emily suggests they have a party at the apartment to celebrate, which doesn't go as planned.

While everyone else is making plans for Christmas, Bob learns he needs to be hospitalized right away to have his tonsils removed. Not only is he embarrassed by having the operation at his age but his nurse was once his patient as well.

Mr. Carlin needs to raise money for a real estate deal and convinces Bob and Jerry to invest.

The Hartleys notice the devotion that Larry has for Carol but it seems to go beyond the usual behavior of newlyweds. Even Carol wishes to have some time to herself once in a while.

Meet Howard's brother Gordon Borden 'William Rdefield', a game warden - from Oregon who has a history of stealing his kid brother's wallet, skates, shirts and ... girlfriend?

Jerry is lonely and misses his former girlfriend, Courtney. She returns and they resume their romance with a new twist - she is adopting a Spanish boy and wants Jerry to be his father.

The Chicago Sun Spots' star basketball player is an obnoxious hot dog whom Dr. Hartley is asked to teach the virtues of humility, teamwork and good sportsmanship.

Carol wants more from her work and job, so she goes to night school for classes. She decides to study psychology and do what Bob does. Within one or two classes, she starts analyzing everyone's every behavior - whether they want it or not.

One of Bob's patients is a shy, uncertain, non-assertive salesman. Bob tells him to be a bit more assertive to do his job. When Mr Heard tries to follow his advice, he gets injured by a home owner and decides to sue Bob.

Howard gains custody of his son Howie and is ecstatic. Since Howard has to travel a lot, he asks Bob & Emily to find a babysitter for Howie. They find a beautiful woman that Jerry wants to date.

Bob's friend Cliff, also known as Peeper, visits Bob & Emily. Emily is not thrilled. Peeper's wife kicked him out. Jerry shows Peeper how to be a swinging single.