Return of the Shaggy Dog
Before the Shaggy D.A. is when this movie is supposed to take place, but really, it's and 80's movie that just has a good time (the Shaggy D.A. was a 70's flick)...Offered as a two-parter on The Wonderful World of Disney, this movie has only been aired twice, as far as I know, and had Wilby Daniels engaged but before he can get married he ends up kidnapped by the professor's caretakers (who find the ring and read the inscription, hence Wilby's return as the shaggy dog). Also mixed in with the plot is Wilby's brother who is trying to find the perfect dog for a dog food.