Question about Classic AT40 shows with Casey Kasem

[patstop40]

Ok here is an intresting question. For a while now I have been wanting to figure this out. On the classic AT40 shows from the 80's durring the closing credits Casey normally says "And there you have em the 40 biggest hits in America stright off the Billboard chart" and then he gives the chart date. My question is when exactly did Casey start using the words 'pop chart" in the end credits? For example Casey used to say, "And there you have em, the 40 biggest hits on the pop chart based on official airplay data provided by Mediabase 24/7." This may be a stupid question, but it's kind of intresting. My guess is Casey started saying "pop chart" instead of "the 40 biggest hits in America' after "Casey's Top 40" started in 1989. But I would like to know exactly when this started. If anyone knows let me know, PEACE!

[Libra]

I don't think Casey would've ever said "pop chart" during the original AT40 era, since AT40 was based off the Billboard Hot 100 until Billboard changed its chart methodology in November 1991. Casey obviously wasn't using Billboard for Casey's Top 40, so it seems logical that he'd refer to a "pop chart" there.

Someone please correct me if I'm wrong.

[patstop40]

Well I do know that in 1994 when I first heard "Casey's Top 40" he used the words "pop chart." on the AC shows he used to say "And there you have em, the 25 most popular songs on this weeks national AC chart." But that makes sense what you said about the Billboard chart lol.