Portrayed by future Smart Guy Tahj Mowry, there was no way that Teddy wouldn't win audiences over.
As we saw in our article on Boy Meets World guest stars, it's especially common for siblings to make guest appearances on one another's series.
The later seasons got really weird.
For the record, the same still holds true on Fuller House, too.
And as if there was any doubt as to who that performer would have been in the 1990s, especially given the Elvis genre focus of the series, Joey goes on to open for Wayne Newton.
Thirty years after first premiered, its impact is still astonishing, with new generation after new generation being exposed to the series in reruns.