The Neighborhood of Make-Believe holds its opera on Potato Bugs and Cows. Lady Aberlin plays Priscilla, an unsatisfied cow who wants to be a potato bug. A segment of Fred's discussion about Priscilla Cow's emotion had a cameo on a television screen in the 1995 film Casper.

Rogers tells viewers of the time he had an imaginary friend. Daniel has an imaginary friend, Malcolm Apricot Dinko, whom he consults to decide whether he should spend the night with Grand-père.

Rogers and other neighbors participate at the talent show held at Betty's Little Theater.

Rogers gives a Santa Claus costume to Chef Brockett. Both Betty Aberlin and François Clemmons talk of how as children, they used to be afraid of Santa Claus. Santa Claus, himself, also comes to the neighborhood. This is the first series episode to use the closing song "It's Such a Good Feeling". This continued as the closing song until the end of the series in 2001.

Rogers demonstrates how to use a microscope, and visits the Neighborhood Barber Shop for a haircut from Nick the barber. In the Neighborhood of Make-Believe, Lady Elaine is intent to cut Santa Claus' hair without his permission.

Rogers pretends to be a bird at François Clemmons' studio. In the Neighborhood of Make-Believe, King Friday makes another bad rule, that nobody can have bare hands. Lady Elaine doesn't take the rule seriously until a cold breeze blows by.

Chef Brockett is planning to add a soda fountain to his bakery. In the Neighborhood of Make-Believe, Lady Aberlin brings back the toy horse which, when a string is pulled, says "I know". X gives her a toy seagull which says "you know" when a string is pulled.

Rogers and several other neighbors attend the opening of the new soda fountain at Brockett's Bakery. Eric Kloss visits the Neighborhood of Make-Believe, telling King Friday how the other senses tell a blind person about the world.

Mr. McFeely wears a new Speedy Delivery uniform. In the Neighborhood of Make-Believe, Henrietta shows her disdain for getting Collette's old clothes, which don't fit.

Collette has sent dresses and hats from Paris to the Neighborhood of Make-Believe. One of the hats is too big for Henrietta Pussycat, so Lady Aberlin gives it to Queen Sara.

Golfer Carol Mann visits Rogers' television house to show his golf equipment. In the Neighborhood of Make-Believe, X swings his golf club, inadvertently knocking boxes out of Corny's hands.

Rogers hears Bob Trow lead his a cappella group at Negri's Music Shop. In the Neighborhood of Make-Believe, Corny and Robert Troll want to console X.

Rogers' telephone isn't working, so the telephone repairman makes a visit.

Rogers discusses sleep, with help from the McFeelys. Sunset reaches the Neighborhood of Make-Believe, and Daniel still doesn't believe he can to go to Grand-père's for the night. Donkey Hodie has advertised his need for a helper at Someplace Else.

Rogers hears a harmonica band at Negri's Music Shop. In the Neighborhood of Make-Believe, Donkey Hodie realizes that Malcolm Apricot Dinko cannot help much with harvesting the vegetables.

Mrs. McFeely has a cow named Harriet, and Rogers sees how Harriet is milked. A new arrival to the Neighborhood of Make-Believe, Harriet Elizabeth Cow, answers the call for help at Someplace Else.

Ana Platypus is beginning to speak. Harriet Elizabeth Cow is pleased to see her.

Lady Elaine Fairchilde decides to make mischief at the welcoming party for Harriet Elizabeth Cow. When a splash of milk ruins the welcoming cake, some believe Malcolm Apricot Dinko is responsible.

Guy Disalvo visits Rogers' television house to talk of his sugar-cube structure. In the Neighborhood of Make-Believe, Lady Elaine wants to know who Lady Aberlin likes better: Harriet Elizabeth Cow or Lady Elaine.

Lady Aberlin is dressed as a ballerina, dancing with Robert Troll to Lady Elaine's piano music.

Rogers shows crayon rubbings. Later he sees preparations for a variety show at Betty's Little Theater. In the Neighborhood of Make-Believe, King Friday wants to rush Prince Tuesday's learning skills.

Joe Negri shows Rogers an accordion at Negri's Music Shop. In the Neighborhood of Make-Believe, Lady Elaine plays an accordion in Someplace Else just to show up Harriet Elizabeth Cow.

Rogers visits Elsie Neal's Craft Shop, where Bill Strickland talks of making clay pots. The Neighborhood of Make-Believe sees Purple Panda, the first of a handful of visitors from the Planet Purple.

The Neighborhood of Make-Believe welcome another two new visitors from the Planet Purple, called Paul and Pauline.

Paul and Pauline command that Purple Panda broke a law by rocking in a rocking chair. As a punishment, Purple Panda cannot return to Planet Purple.