While a helicopter is flying overhead at the Duke's farm you see Bo and Luke looking out a window with the drapes closed but in the camera angle looking out you see the drapes open and waving in the draft from the window.
Luke: Remember when I busted my best Louisville slugger taking a swipe at you?
Bo: Yeah, I do. But remember, it wasn't the bat that broke the wall. It was my head.
Luke: I may be packing, but I'm not giving up.
Bo: Not without a fight.
Luke: Bo, our uncle is just a little too old to be starting over.
Bo: Yeah, I know what you mean. You know, he spent the best years of his life taking care of us in this house.
Luke: Best years of our lives, most likely.
The plot in this one whereby a developer tries to get a hold of vast amounts of land in Hazzard County in order to strip mine the coal from underneath the surface is similar to the plot used in the movie version of Dukes of Hazzard.