Sorry I missed the communal watching, Hobie. I had in my mind that it was later (I'm not used to Central Time), and didn't have my DVDs out ready.
Technically, Jason Lively is Ernie Lively's (Ernie Brown's) real life stepson.
Ernie's character was called Dobro Doolan in this episode. After three appearances as Longstreet B. Davenport in season 2, he made a final appearance as Clyde the Guard in season 6.
The flying piano wasn't very convincing. The truck stopped and then the piano flew off.
According to Wikipedia, Western Auto closed in 2003, although some stores continued (illegally) using the name/signs.