The Art of Dallas: ‘No More Mr. Nice Guy, Part 2’

Jock (Jim Davis) welcomes Gary (Ted Shackelford) home to Southfork in this 1980 publicity shot from “No More Mr. Nice Guy, Part 2,” a fourth-season “Dallas” episode.

The Art of Dallas: ‘No More Mr. Nice Guy, Part 1’

Miss Ellie and Jock (Barbara Bel Geddes, Jim Davis) confer with Dr. Pearson (Peter Donat) about J.R.’s condition in this 1980 publicity shot from “No More Mr. Nice Guy, Part 1,” “Dallas’s” fourth-season opener.

The Art of Dallas: ‘A House Divided’

Vaughn (Dennis Patrick) gives J.R. one last shot at making restitution in this 1980 publicity shot from “A House Divided,” “Dallas’s” third-season finale.

The Art of Knots Landing: ‘Community Spirit’

Gary and J.R. (Ted Shackelford, Larry Hagman) are seen in this 1980 publicity shot from “Community Spirit,” a first-season “Knots Landing” episode.

The Art of Knots Landing: ‘Pilot’

Valene and Karen (Joan Van Ark, Michele Lee) are seen in this 1979 publicity shot from “Knots Landing’s” pilot.

The Art of Dallas: ‘Mastectomy, Part 2’

After her cancer surgery, Miss Ellie (Barbara Bel Geddes) is comforted by Jock (Jim Davis) in this 1979 publicity shot from “Mastectomy, Part 2,” a third-season “Dallas” episode.

The Art of Dallas: ‘Mastectomy, Part 1’

Miss Ellie (Barbara Bel Geddes) lies in a hospital bed after having a breast removed in this 1979 publicity shot from “Mastectomy, Part 1,” a third-season “Dallas” episode.

The Art of Dallas: ‘Rodeo’

Lucy (Charlene Tilton) is seen in this 1979 publicity shot from “Rodeo,” a third-season “Dallas” episode.

The Art of Dallas: ‘The Dove Hunt’

J.R. (Larry Hagman) comes under fire during a hunting trip in this 1979 publicity shot from “The Dove Hunt,” a third-season “Dallas” episode.

The Art of Dallas: ‘The Kristin Affair’

Kristin and J.R. (Mary Crosby, Larry Hagman) flirt with each other in this 1979 publicity shot from “The Kristin Affair,” a third-season “Dallas” episode.