Islander legend Bob Nystrom watched the game from the SportsChannel TV studio – he was a healthy scratch.
Here's more coverage of the game, and Brent Sutter's recall, from the NY Times:
I don't have any video from that game, which was the final regular season game between the two teams that season, so how about some highlights from the final playoff meeting (the only Stanley Cup won by the Islanders on the road).
Here's the (grainy) video on Townshend's tally:
(While it was his final NHL goal -- it wasn't his final NHL game,as the video suggests.)