Diff'rent Strokes: Retrospective

Diff'rent Strokes: Retrospective
NBC
December 29, 1978
Sitcom
DVD
C-

A one-hour retrospective?  I can see that after seven seasons, but after seven episodes?  And we get flashbacks to more than one scene of each of those seven episodes, with the family, together for 56 days and about to celebrate Christmas, reminiscing in the frame sequences written by Gilligan's Island veteran Budd Grossman and Brady Bunch vets Howard Leeds (writer of one episode but producer of all) and Ben Starr (three Brady scripts).  Riley and Travolta are re-tagged since their cameos are long enough.