John Ross `` J.R. '' Ewing , Jr. is a fictional character in the hit U.S. television series Dallas ( 1978-91 ) and its spin-offs , including the revived Dallas series ( 2012-14 ) .
John Ross `` J.R. '' Ewing , Jr. is a fictional character in the hit U.S. television series Dallas ( 1978-1991 ) and its spin-offs , including the revived Dallas series ( 2012-2013 ) .