The Old Man and the Lisa

When Burns sells the plant to a company that makes fish sticks for $120,000,000, he offers Lisa 10 percent of his profits, but she declines for ethical reasons, causing Homer to have four simultaneous heart attacks.

"The Old Man and the Lisa" contains cultural references to the television series That Girl and the film Invasion of the Body Snatchers.

Mr. Burns speaks to the club at Springfield Elementary School, scoffing when Lisa suggests his nuclear power plant start a recycling program.

When Burns boasts that he would not be filthy rich if he listened to nature lovers like her, Lisa counters that his net worth is only half what he claims.

The bank forecloses on the plant — putting Lenny in charge — and sells his mansion to pro wrestler Bret Hart.

At the supermarket he is confused by the difference between ketchup and catsup, so the grocer commits him to the Springfield Retirement Castle, finding his brief time there monotonous.

Lisa, a vegetarian and animal rights supporter, realizes he has not changed; when he tries to be good, he is even more evil, although he insists that he is providing a needed commodity.

The hospital's public address system announces a code blue, indicating Homer has suffered cardiac arrest.

[9] The staff joked about this being a suitable series finale, due to the episode ending with Homer suffering from another heart attack after learning what 10% of Burns' $120,000,000 check really is.

[8] Professional wrestler Bret Hart guest starred in the episode as himself, and he was very insistent that he be shown wearing his pink wrestling outfit.

Club's Dave Hofer, Hart explained that the reason why his animated counterpart sounds nothing like him was that initially, he was brought in to voice a generic wrestler.

[2] The scene where Lisa runs through the streets proclaiming recycling as evil, spoofs the finales of Soylent Green and the original version of Invasion of the Body Snatchers.

[14][15] Warren Martyn and Adrian Wood, the authors of the book I Can't Believe It's a Bigger and Better Updated Unofficial Simpsons Guide, called it "An odd episode with a not-too-unexpected outcome.

Guest voice Bret Hart insisted that his animated version in the episode would wear his pink wrestling outfit.