Larry Hagman (J.R. Ewing), Patrick Duffy (Bobby Ewing), Ken Kercheval (Cliff Barnes), Linda Gray (Sue Ellen Ewing) and Steve Kanaly (Ray Krebbs) are the only actors to appear in both this episode and the series finale Conundrum (1991).
Although playing his mother, Barbara Bel Geddes was only 9 years older than Larry Hagman.
At about the half-way point, Pamela drives Bobby to work in his red Mercedes-Benz 450 (Ewing 4). The panoramic shot of the city of Dallas is used at the start of the opening credits for the first 7 seasons.
Most of the cast wear their own clothes during the pilot episode and subsequent installments of the first season instead of clothing from the studio wardrobe department.
David Jacobs's screenplay was originally set during a hot summer. But when filming was scheduled during winter, some dialogue (and wardrobe) changes needed to be made.