First mention of the fictional Mystic Warlords of Ka'a card game that was created for The Big Bang Theory (2007). Tam introduces it to Sheldon at their sleepover.
This episode has the same basic story-line as a season two episode of The Big Bang Theory (2007) when Penny asked Sheldon to keep a secret from Leonard about her not getting her associate's degree. In both instances, trying to keep a secret drove him crazy and the secret eventually came out. Unlike The Big Bang Theory, where Sheldon spilled the beans, in this one he guilt-shamed his father.
Young Sheldon supposedly takes place during the 1980s and '90s in Texas. This episode states Georgie and Meemaw went to a dog track. There were not then, nor now, dog tracks in Texas. However, they did not say they went to the track in Texas. Many Texans go out of state to gamble, as it is illegal in Texas.