Yeah, Brock caught his Zubat in this one - a little confusingly, since you never see him do it.
This episode was mighty awkward. 4Kids screwing up Seymour's character didn't help (am I the only one who thinks he looks like Seta from "Love Hina"?). But once again, we get multiple Pokémon introductions in one episode (Zubat, Paras, Sandshrew, Clefairy, Staryu, and Clefable), so that kinda makes up for it.
Interestingly, this episode was adapted as a comic over the course of three issues of "Disney Adventures" in the summer of 1999, back when I was just figuring out what "Pokémon" was, so technically this was the first episode I saw. I had heard about Team Rocket prior to reading the comic, or even hearing about "Pokémon" for the first time, though at the time I thought they were some kind of rap group (God, I used to be an idiot...then I learned the facts and became a bigger idiot).