I think I've fixed all 4 seasons, just need to delete the extra episodes that i marked as non existent to delete, hope a mod helps me with that, and that i didn't mess up too much, i'm matching Wikipedia and thetvdb I've found they are the only two sources that reflect each other...

Hi there, I removed the extra Season 1 episodes. However, I had to undo many of your changes for a few reasons:

• It's generally a bad idea to swap episode titles and overviews. There pretty much always data attached to the episodes: translations, external IDs, images, videos, and/or cast and crew. We strongly recommend using the episode number to fix the order when episode are in the wrong order.
• Episodes have to be in the original airing order. The fourth season in particular had really random air dates. That should tell you something is wrong.
• Before removing around half the episodes of Season 3, I would really like a good reference for your season split.