The Daily Caller says this:

Actor Larry Hagman, best known for his role as Dallas’s Machiavellian oil baron J.R. Ewing, died Friday at age 81, after complications from cancer.

Hagman’s career spanned over 60 years, and included not only Dallas and its revival series, which launched earlier this year on TNT, but also the seminal 1960s comedy series I Dream of Jeannie, where he played Major Anthony “Tony” Nelson opposite Barbara Eden’s titular character. Hagman had, according to The Hollywood Reporter, filmed six of the new Dallas’s 15 episodes at the time of his death, with the second season scheduled to start on January 28. How the show will incorporate Hagman’s death remains to be seen….