Lee Stetson/Scarecrow (Bruce Boxleitner) gives Mrs. King (Kate Jackson) his phone number on a business card as 202-547-9986, a rare case where the extension is not 555 for a film/tv series.
In the lead in they show throughout the entire series, there are at least three clips that are not found in any of the episodes. The most notable is the last one where Lee Stetson is obviously a taxi cab driver and Amanda King is for some reason in the middle of the street on the ground. Cute scene but have not found it in any of the episodes.