Later appearances by series characters
St. Elsewhere (1985)
Jack Riley reprised his Elliot Carlin role on a 1985 episode of St. Elsewhere and partnered with Oliver Clark as the amnesiac John Doe Number Six. Carlin and Doe have been committed to the hospital's mental ward, where Carlin treats Doe with the same verbal abuse he directed toward Clark's "Mr. Herd" on The Bob Newhart Show. Carlin blames his insanity on an unnamed "quack in Chicago." While Oliver Clark's recurring portrayal of John Doe Number Six is essentially identical to Mr. Herd, the two are never stated to be the same individual. In a nod to the Mary Tyler Moore Show, John Doe Number Six addresses a character played by Betty White as Sue Ann Nivens, which Betty White's character denies.
ALF (1987)
In the 1987 ALF episode entitled "Going Out of My Head Over You", Willie visits a psychologist, Dr. Lawrence "Larry" Dykstra, portrayed by Bill Daily. Jack Riley is in the waiting room, apparently portraying Elliot Carlin. Also in this episode, ALF mentions learning about psychology by watching episodes of The Bob Newhart Show.
Newhart (1988 and 1990)
Riley appears in a 1988 episode of Newhart, playing an unnamed character who acts very much like Mr. Carlin. This character is being treated by the same therapist in Vermont whom Dick Loudon (Bob Newhart) visits for marriage counseling. Dick feels he recognizes Riley's character, but cannot place his face; whereupon the unnamed patient insults him. Echoing Carlin's statement from the 1985 St. Elsewhere, the therapist apologizes for her patient, explaining that it has taken her "years to undo the damage caused by some quack in Chicago."
Tom Poston, who played Cliff "The Peeper" Murdock, Bob's college friend from Vermont, played "George" the resident handyman from Vermont, throughout the Newhart series. Poston and Suzanne Pleshette married in 2001, with the marriage lasting until Poston's death in 2007. Pleshette died the following year.
Newhart and Pleshette reprised their roles from the show for the 1990 finale of Newhart, in which it was revealed that the entire Newhart series had just been Bob Hartley's dream. Bob and Emily awake in a room identical in appearance to their Chicago bedroom from The Bob Newhart Show. (This plot device had previously been used in the season five finale ("You're Having My Hartley") in which Emily is pregnant. At the end, the pregnancy is revealed to have been a dream.)
The Bob Newhart Show: The 19th Anniversary Special (1991)
The entire cast assembled for the one-hour clip show The Bob Newhart Show: The 19th Anniversary Special in 1991, which finds the show's characters in the present day. This show is set in Chicago, in the same apartment and office that Bob Hartley had in his 1970s show. During the course of the show, the characters analyzed Bob's dream from the Newhart finale. At one point Howard recalled, "I had a dream like that once. I dreamed I was an astronaut in Florida for five years," as scenes from I Dream of Jeannie featuring Bill Daily as Roger Healey were shown.
Murphy Brown (1994)
Newhart played Bob Hartley on Murphy Brown, in the episode "Anything But Cured" (March 14, 1994) to beg Carol (Marcia Wallace reprising her role from The Bob Newhart Show) to leave her job as Murphy's secretary and come back with him to Chicago.
Saturday Night Live (1995)
Newhart reprised Hartley twice in the February 11, 1995, episode of Saturday Night Live. In one sketch, he appears on a satirical version of Ricki Lake, befuddled by Ms. Lake's dysfunctional guests and her armchair pop psychology. The episode ended with a repeat of Newhart’s "just a dream" scene, in which Bob Hartley again wakes up with Emily (Pleshette), and tells her that he just dreamed he had hosted SNL. Emily responds, "That show's not still on, is it?"
George and Leo (1997)
George and Leo was a sitcom starring Bob Newhart and Judd Hirsch, and a 1997 episode called "The Cameo Episode" featured a raft of cameo appearances by their co-stars of previous series. Although the actors were not necessarily playing the same characters as they played in the previous shows, there was certainly a suggestion with some of the unnamed characters that they could be. Amongst the Bob Newhart Show actors making cameos in the episode were Peter Bonerz (as "Dr. Robins"), Oliver Clark, Bill Daily (as a pilot), John Fiedler, Tom Poston (as a police officer), Jack Riley, and Marcia Wallace.
CBS at 75 (2002)
Newhart and Pleshette, as "The Hartleys," were the hosts of a segment of the CBS at 75 broadcast.