Episode: 119 | Aired: October 11, 1969
Arnold the pig becomes the focus of attention in Hooterville when word gets out that he might be the heir to a $20,000,000 estate.
Episode: 120 | Aired: October 18, 1969
Oliver, Lisa and Eb travel to Chicago with Arnold the pig to prove that he is the rightful heir to a $20,000,000 estate.
Episode: 121 | Aired: October 25, 1969
When Lisa and Oliver return home with Arnold Ziffel, the townspeople hold a warm reception in honor of Hooterville's first "millionaire pig."
Episode: 122 | Aired: September 27, 1969
Lisa's "mudder" (mother) pays a surprise visit to the Hooterville farm and promptly takes over as a three-week houseguest.
Episode: 123 | Aired: October 04, 1969
Oliver loses all hopes of getting rid of his mother-in-law when Mr. Haney and Uncle Joe Carson vie to become his father-in-law.
Episode: 124 | Aired: December 20, 1969
Oliver launches a merry, mixed-up corn-planting session which produces a stupendous crop that farmers only dream about.
Episode: 125 | Aired: December 27, 1969
Lisa launches a vigorous beauty campaign when she enlists Sam Drucker as her partner in a chic cosmetics business.
Episode: 126 | Aired: November 29, 1969
Oliver accepts an invitation to address a class in the Hooterville High School, and winds up as the object of a teenager's huge crush.
Episode: 127 | Aired: November 08, 1969
Lisa turns fortune teller and predicts that a mysterious stranger will soon enter Oliver's life.
Episode: 128 | Aired: November 01, 1969
Hooterville's unpaved roads create a major dust problem that sends Oliver and Lisa to the State Capitol to seek remedial action.
Episode: 129 | Aired: November 15, 1969
Oliver stands up in a town meeting and suggests they build a youth center as a way to keep the young people in Hooterville.
Episode: 130 | Aired: January 31, 1970
Oliver makes an impassioned speech before the County Bar Association on the virtues of hiring ex-convicts, and finds himself with an ex-con for a hired hand.
Episode: 131 | Aired: January 03, 1970
Oliver and Lisa discover an ancient mail order catalog in the wall of their farmhouse and recognize it as a wishbook.
Episode: 132 | Aired: November 22, 1969
A special delivery letter addressed to someone in the Douglas family excites the curiosity of the entire Hooterville Valley.
Episode: 133 | Aired: December 13, 1969
Lisa is in her glory as she plans an open-air, farm-style wedding for Hank Kimball and Ralph, the lady carpenter.
Episode: 134 | Aired: January 24, 1970
Oliver says good-bye to Lisa and hurries to New York to help his law firm in a difficult matter.
Episode: 135 | Aired: January 10, 1970
An old friend of Oliver's pays the Douglases a visit to enjoy a little rest and relaxation.
Episode: 136 | Aired: January 17, 1970
Oliver and Lisa explore a mysterious cave under their farmhouse - and become trapped when the entrance collapses.
Episode: 137 | Aired: February 07, 1970
Lisa mistakenly labels her husband "The Cow Killer" when Oliver takes a drastic action to rid his farm of a cow that has been trampling his crops.
Episode: 138 | Aired: February 14, 1970
Oliver is elected School Board President and immediately becomes the object of a protest movement to reinstate an expelled student--Arnold the pig.
Episode: 139 | Aired: February 28, 1970
Oliver unintentionally provides the motive for the residents of Hooterville to illegally receive more than $500,000 from the Internal Revenue Service.
Episode: 140 | Aired: March 07, 1970
Oliver's plans for an intimate family picnic with his wife are ruined when the entire Hooterville Valley turns out to celebrate the event.
Episode: 141 | Aired: March 21, 1970
The Douglas farm succumbs to a bit of "lunar madness" when a precocious child inventor shows up to say he's been to the moon.
Episode: 142 | Aired: April 11, 1970
Eb shows a strong "mail pull" when he represents himself as a wealthy landowner and advertises for a wife.
Episode: 143 | Aired: March 28, 1970
Lisa's Uncle Fedor makes an unexpected appearance at the Douglas farm and quickly involves them in an old world intrigue of spies and counter-spies.
Episode: 144 | Aired: April 11, 1970
Oliver anticipates a surprise birthday party for himself--but it's Arnold the pig who winds up with the birthday celebration.
Episode: 145 | Aired: September 29, 1970
Oliver and Lisa lavish attention on their little house guest, Lori, and Eb decides she's taking his rightful place in their affection.