Today's the day! Billy Miller makes his first appearance as GH's Jason on today's episode. "It’s certainly some big boots and a big black T-shirt to fill," he tells Digest exclusively of taking over where Steve Burton (Dylan, Y&R) left off in 2012. For more from Miller about his negotiations, his thoughts on Y&R and the new Billy and his message to GH fans, don't miss the next issue of Soap Opera Digest, on sale Friday.