The Wubbulous World of Dr. Seuss

Apparently, a focus group thought this was for much younger kids and some viewers complained about how scary it was in the first season. What happened next? The show, of course, had to undergo a drastic shift in the second season to compete with Bear in the Big Blue House. This resulted in Flanderization of multiple characters, especially the Cat in the Hat, who lost his book counterpart's snarky persona and became more of a host like Bear. Unsurprisingly, the show was cancelled after its second season.