Listing for "Behind the Scenes" on WLIW, 14 April 1990; Journal News, White Plains, NY; 8 April 1990
A listing for a half-hour "Behind the Scenes: Doctor Who", with the added description "A behind the scenes look at the making of this popular science-fiction series", was billed in papers for New York station WLIW on 14 April 1990, and for New Jersey Network on 24 October 1992.
We are not sure what this was - but see the list of possibilities on our Documentaries and Specials page.
We are sure that it wasn't Resistance is Useless, as that was screened by New Jersey Network two months later on 2 January 1993.
While it's possible this was a shorter edit of the making of Silver Nemesis special, the full version of that was aired by WLIW only a few months later, on 27 March, and again on 8 May 1993.