I have to say I'm hooked on the "American Top 40" reruns with Casey Kasem. One that was on last night was from 1971....I didn't realize the show was even being done that long ago. My first memories of it are from about 1977 or 78. I can't seem to find the info on when this is going to be run regularly on XM's website. I assume it's more than just this marathon, no?