I stopped watching when the voice actors changed and the show moved to Cartoon Network. I didn't like the new voice actors at all, and I didn't have cable, so I didn't have any way of watching new episodes when they aired anyway. My interest started to dwindle a couple of seasons before that, though. I never liked the Hoenn series characters much, and I also disliked how Ash essentially dumped all of his Pokemon (sans Pikachu) and "rebooted" at the start of the Advanced series. As a result, though I watched the Hoenn episodes until they went off the air, I wasn't as upset by Pokemon's switch to cable (and therefore, off of my TV) as I expected to be.