Haney's is referred to by his seldom-used first name, Eustace, by Hank Kimball.
Hank Kimball loses 4 games of checkers to Arnold the Pig. A pig's legs is seen moving checkers around a board.
The movie Lisa and Eb watch about a racehorse being the reincarnation of a racing aficionado is reminiscent of The Return of October (1948), starring Glenn Ford, Terry Moore, and James Gleason. Mr. Gleason's character, Uncle Willy, is reincarnated, or so his niece believes, and wins the Kentucky Derby.
Lisa and Eb watching a soppy movie on TV about a grandfather who promises he will come back as a champion racehorse. As Fishmouth, he wins the big race for his granddaughter and the residents of South Ashburyville.