While Sirius/XM has around 20 million subscribers, how many of them actually tune into the Howard Stern Show on a regular basis? I know that it is hard to know since there are no ratings. But what is your guess and why do you think that? I would be surprised if he had more than 500,000 listeners on any given day and wouldn't be surprised if the actual numbers dipped below 100,000. Given how boring the show is now, I just can't imagine that he has a lot of listeners.