The funeral for JR Ewing will be the centrepiece for the second season's eighth episode, 'JR's Masterpiece'. JR was shot by a mystery killer in the previous episode, a nod to the famous 'Who shot JR?' storyline from the 1980s incarnation of the show.
Following the death of Hagman at the end of 2012, producers and writers created a tribute to Hagman with the funeral episode.
The instalment features guest appearances from Ted Shackelford as Gary Ewing, Charlene Tilton as Lucy Ewing Cooper, Cathy Podewell as Cally Harper Ewing, Deborah Shelton as Mandy Winger and Steve Kanaly as Ray Krebbs.
Dallas Mavericks owner Mark Cuban, Dallas Cowboys owner Jerry Jones, and Dallas mayor Mike Rawlings also appear.
The rest of season two will centre around the new 'Who shot JR?' mystery.
Dallas exec Cynthia Cidre has confirmed that JR's killer will be revealed in the show's second season finale.
"It seemed to me that having JR pass away of natural causes really cheapens the audience of some delicious reveal," she said.
"So once that was eliminated, then it became - how did he die?"
Cidre also said: "Our mission is to give Larry Hagman and JR a proper send-off. This is a character who will have the last laugh, no matter what."
'JR's Masterpiece' airs on Tuesday, March 19 at 11pm on Channel 5.