For the last two years, me and two buddies have done a yearly radio show with the local NPR station. To raise money for the station they sell an hour of radio time for people to play dj for an hour. So we've done a progressive rock hour twice now and had a blast doing it. We stay mostly on the Prog Metal side but try to vary in style a bit. We're thinking of upping the ante next time and doing two hours, using the first hour as a history of sorts, leading up to the modern stuff we love. So we've got some ideas for how we'd accomplish that, but I'd love to hear from some of you: if you were doing a show like this, how would you do it? What would you play and what bands would you talk about in order to give a good historical overview of prog leading up to modern progressive metal?