S5E16 “TGS Hates Women”

https://imdb.com/title/tt1635813/fullcredits/

I always assumed this was a cameo appearance by the actual Bob Ballard after the many times he was referenced in previous episodes. But I just started watching seaQuest DSV, in which Ballard would appear during the credits to give some fun facts (just like the end of this 30 Rock episode), and discovered that they are indeed not the same person.