I found this video on YouTube which got uploaded today where Harry Anderson and DeLane Matthews are the guest hosts for American Top 40 on September 4, 1993 and they fill in for Shadoe Stevens.

https://m.youtube.com/watch?v=XMDKRBsNlQc

Ironically, I just finished that because I always listen to those uploads. It was pretty cool and until recently I forgot about this show. My mom liked this show but wasn't much in syndication I don't think.

I haven’t gotten around to listening to this myself, but whenever there’s a good upload, I always make sure to listen.

Here’s another American Top 40 show (no video though) where two other cast members from the show host:

http://www.oldradioshows.com/at40/061894.html

The video is no longer available because the YouTube account associated with that video has been terminated.