I was in what looked like a library room where there are card catalogs & a desk. But then it turns out to be a tv set for the Andy Griffith show. I notice Ron Howard who plays Olpie but he is a kid like he was on the show way back then. So I realize that I am back in time & become lucid. I'm excited & telling him that he is going to be famous & that when he grows up he will be a producer & director. We are walking around & I'm trying to figure out how long ago it really was & I tell him that I know about this because I live in the future about 50 years from this time. I was laughing to myself because I'm trying to do math in a lucid dream. It was mostly tricky because when the show aired it was ahead of when the time of the show was set in. The set was really cool but I lost my lucidity & just woke up.