Bonanza
The Wooing of Abigail Jones (3x24)
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In order to keep peace on the ranch, Hoss and Joe try to help ranch hand, Hank Meyers woo the the plain-looking schoolteacher, Abigail Jones. When their first plan backfires, they convince Adam (who doesn't want to get involved) to help and this makes things worse because Abigail believes it is Adam who is wooing her and Hank Meyers believes Adam wants to steal her away.