The ABC All-Star Spectacular

(ML.1.50, by Robert Arthur)  Sun, September 15, 1985.  ABC kicks off their 1985-86 season with a "Love Boat"-hosted event attended by stars of the network. While others aboard refer to "Cybill Shepherd and Bruce Willis", the scene in which both of their likenesses appear is 100% Maddie and David, with her clearly calling him "Addison" at one point.

Complete Episode

The ABC All-Star Spectacular  (NOTE: David and Maddie are featured at 7:42-10:38.)