The first of eight crossover episodes (plus two guest spots on Petticoat Junction) in season 7. This one is all build up with no payoff (you'll have to see the next episode for that). Upon returning from their 5-episode stint in England (cue stock footage of Pan Am jets and LAX), Granny gets word that Petticoat Junction's Betty Jo Bradley (Linda Henning) just had a baby. As a self-proclaimed expert baby doctor, Granny gets all worked up about leaving immediately for Hooterville. The running joke here is that no one else in the family knows Betty Jo or her family. (Granny turns out to be a very distant cousin.)
All we see of Hooterville is Sam Drucker and Uncle Joe talking to Granny on the phone. The episode ends just as her trip gets started (Jethro is supposed to drive her the entire way). This is nothing more than a long, drawn out set up for the next episode. One amusing bit has Jed holding miss Hathaway and carrying her to a sofa after she hurts her back. Granny -- and later, Mr. Drysdale -- mistake this for a romantic encounter and complications ensue. Overall a disappointing entry due to a padded story that literally goes nowhere.
The mother of all crossovers, the story continues on Petticoat Junction,"Granny, the Baby Expert" (November 2, 1968), then wraps up on B.H. "The Italian Cook" (November 6). Then the Clampetts visit Hooterville for Thanksgiving, Christmas, plus another Petticoat show, etc. (see my other reviews for this string of shows).