I switched over from Sirius to XM w/Best of Sirius recently because of XM's better choice of sports, comedy and talk. I started listening to Opie and Anthony out of curiosity and it's growing on me. I've noticed that they seem to be sharing guests and I'm wondering if this has always gone on because they're both similar shows in New York or if it's something to do with the merger. Last week William Shatner did both shows and the Penthouse pet that's on Howard's show right now was on O&A yesterday.