The organist for the sales scene in the front yard is played by Vic Mizzy, who composed many top-20 songs and theme music for TV, including the music for Green Acres (1965).
The Executive Producer, Writer and Director credits are seen by Sam Drucker on copies of the "World Guardian" newspaper he's printing.
Oliver Douglas flips off the back of the Hooterville Cannonball.
The stunt man is padded from his shoulders to his butt to absorb the impact with the ground.
On the coal car behind the Cannonball train is written "C & F. W. Railroad." It means: Chicago And Far West Railroad.
Haney conducts a $3 tour of the highlights of Arnold Ziffel's life. Highlights include meeting "famous pig lawyer" Oliver Douglas, the log pig sty Arnold was born in, and the proposed site of the Arnold Ziffel stadium.