* BizarroEpisode: The episode 'The Changeling' is about a poltergeist invading the Walton home. No other episode features any overt supernatural elements (though 'The Ghost Story' is ambiguous about a Ouija Board) and this is never mentioned again.
* FanonDiscontinuity: The episodes in Season 9 where it is revealed that [[spoiler: Curt]] is still alive get this treatment.
* MemeticMutation: "Good night, John Boy."
* NightmareFuel: "The Changeling" episode.
* SeasonalRot: Season 9.
* SignatureScene: An exterior shot of the house as everyone wishes each other a good night, ending with "Good night, John Boy."
* TearJerker: The season 6 episode "Grandma Comes Home" combines this with HarsherInHindsight: It's Grandma Walton's first episode back after Ellen Corby's stroke, but it also ends up being Grandpa's last because Will Geer [[TheCharacterDiedWithHim died during the show's hiatus]]. The season 7 premiere "The Empty Nest" deals not only with the loss of Grandpa, but also Flossie Brimmer (whose actress had also died).
** "Day of Infamy" shows the family reacting to the attack on Pearl Harbor. When they get the word that Curt was killed in the attack, Mary Ellen is naturally rocked, more so by his last letter talking of how knowing her and the rest of the family made his life worthwhile.
** Becomes a bigger tearjerker later when after the war, Mary Ellen discovers Curt is alive but a broken drunk who took advantage of the Pearl Harbor attack to fake his death and "escape" the responsibilities of being a husband and father.
* TheyChangedItNowItSucks: Several fans dislike Season 9, mainly because of the different actor for John-Boy and the episodes that focus on the sons fighting in the war. Also, by this point four of the original cast members had left.