The narrator mentions that the box of wine was the first taste of alcohol that Buster has had since he was nursing, but he appears to be intoxicated in the flashback of the intervention. Also, on an earlier episode it was stated that Rosa (Lucille's housekeeper) breastfed Buster.
In the episode, it is stated that Sugarfoot ended twelve years before Michael was born. It actually aired from 1957 to 1961, making its end six years before Michael was born.
Buster is playing the piano, while Tobias dances. While he currently has only one hand due as a result of a loose seal attack, at the time of the flashback he possessed all his extremities.