WKRP in Cincinnati — Season 4

WKRP receives a bomb threat from the terrorist group "Black Monday," and Andy sends Johnny and Venus to broadcast from the transmitter while the station is being searched. Meanwhile, Mr. Carlson's former secretary visits, and he misreads her desire to meet for lunch.

Andy realizes the threatened bomb is actually at the transmitter where he's sent Johnny and Venus. He tries to contact them, but Johnny has smashed the phone out of frustration over a missed bet on a horse. Luckily, with help from the police, Johnny and Venus get out before the bomb explodes.

While the station's employees consider unionizing, Mr. Carlson deals with feelings of betrayal.

Johnny stays at Bailey's place while his apartment is being fumigated, leading to rumors that the two are having a sexual affair.

Herb secretly checks into a hospital for heart tests, but then sneaks out and takes Les to a 3D pornographic movie.

Mr. Carlson has to pretend to be Herb to make a sale while Herb is in the hospital, while Les pretends to be Mr. Carlson, and Johnny pretends to be Andy to avoid paying a gambling debt.

Johnny receives a $24,000 legal settlement from the L.A. station that fired him. To stop Johnny from wasting the windfall, Venus advises Fever to invest in a condo at Gone With the Wind Estates.

After Jennifer's elderly boyfriend Colonel Buchanan dies while out on a date with her, she discovers she has been named executrix of his will.

Mama Carlson hires a professional radio consultant to evaluate WKRP, and the consultant threatens Andy with a bad report unless the station subscribes to his programming services.

Andy goes out with Lillian to discuss getting a new transmitter for the station, but Lillian has other plans when she realizes that everyone thinks she and Andy are dating.

Mr. Carlson learns that his wife Carmen first went out with him in college only because her sorority dared her to date someone on the "dip list."

WKRP has to do commercials for a client whose "diet pills" are actually a legalized form of speed.

Venus tries to act and dress more stereotypically "black" to prepare for an interview with a militant magazine, whose writer turns out to be white; meanwhile, Herb adopts a classier image with Jennifer's help.

Class conflict is in the air when Johnny's friends from the fire-damaged Vine Street Mission meet Jennifer's wealthy friends who are preparing to donate money to rebuild it.

Les goes out with a woman he met through a computer dating service, not realizing the service is a front for prostitution.

Venus's latest date gives him an expensive diamond earring as a gift and then runs out on him; it turns out that she's a thief who has used the stolen earring to frame Venus as her accomplice. 

Herb and Jennifer are stuck in an elevator together when a fire shuts down the Flimm Building.

In a take-off on the Janet Cooke scandal, Bailey writes a news story on the Northside Children's Clinic, Les steals it and reads it on the air. This turns out to be a blow to the station's integrity in more ways than one when Bailey admits that she fictionalized part of the story.

When Venus lets it slip that he was a schoolteacher before he came to WKRP, Andy has to tell Mama Carlson the truth about how he hired Gordon Sims as a DJ and how they came up with the persona of Venus Flytrap.

Egged on by his mother, Les announces that he is going to fulfil his lifelong dream by going to New York to audition for the CBS Evening News.

Herb screws up yet again and Mr. Carlson is finally ready to fire him, but Jennifer tries to find a way to save Herb's job by talking to the businessman Herb offended. (This was actually the last episode filmed for the series).

The new ratings arrive, and WKRP has finally become a successful station, rising to #6 in the Cincinnati market with Johnny Fever as the #1 DJ. But when a new news director shows up and says he was hired by Mama Carlson, Andy soon finds out that she plans to change the station to a 24-hour news format.