Some TV Shows are not available on Apple TV for no official, stated reason.

Hello everyone

Recently I've been wanting to watch many TV shows but I found out that shows even like SpongeBob Squarepants are missing. Whenever I try to access the show via the website where all these shows are clearly seen on the Apple TV Website, it asks permission to open my Apple TV app and so when it does it takes me to a page on the app which states " This content is no longer available". Even though some content might be restricted I do not see a proper reason to restrict SpongeBob as it is rated G. My question is that has the content (the TV Shows) been removed officially and is not been shown on the website or is the content restricted based on some criteria. If there might be another reason to why I'm unable to access these TV Shows, please let me know of that as well. Waiting for your Answers. Thank You.