surf the channel

You can watch them in videos and in links, just search for the episode with keywords or in the search fanpop thing.
but if that doesn't work you can also use: www.tvcorn.com or link on tvcorn they mostly got the youku and megavideo version and sidereel had lots of links for each episode, but some of them don't work so it's best if you just look for them on fanpop there the best quality too.