Back in 1978, a new show called "Dallas" quickly crept its way up in television ratings. After the infamous "Who shot J.R.?" cliffhanger that aired in 1980, the nighttime drama had made history, and subsequently enjoyed a 13-season run.
Larry Hagman, in an exclusive with TV Guide, has shared he has been diagnosed with cancer. Doctors have told Hagman that the cancer is a "highly treatable" form, but the actor has not specified what kind of cancer he has been diagnosed with.