Template: RefTNG121
From Trekipedia
Roddenberry, Gene (Executive Producer). "The Arsenal of Freedom". Star Trek: The Next Generation, season 1, episode 21 (Production number 121). Co-Executive Producers: Rick Berman & Maurice Hurley. Directed by Les Landau. Story by Maurice Hurley & Robert Lewin. Teleplay by Richard Manning & Hans Beimler. Paramount Pictures. 11 April 1988.