When I was a kid in the 70's,Saturday mornings were reserved for cartoon watching, and one of my favorites, (along with all my friends and 1/2 the world), was Scooby Doo. I'd watch Scoob and his seemingly stoned side kick Shaggy get in and out of all sorts of ghost chasing predicaments, and have a few chuckles along the way. Then, it was on with radio to listen to "America Top 40" so I could find out what the popular songs in the country were. I would later learn that the voice of Shaggy and a bunch of other Saturday morning characters was Casey Kasem. Casey was the guy who hosted American Top 40 in the 70's and 80's, and was the only radio show we needed to keep track of a song's popularity. You can have your YouTube streams, Spotfy spins, iTunes download charts..etc. I'll take Casey's weekly countdown any day. By the way, good to hear  Casey had his off days on the radio as well. (NSFW audio). R.I.P. Casey.