I believe that refers to the fact that the distributor for the DVDs historically released their earlier VHSs/DVDs in both edited and uncut versions. Since a lot of the shows from 4Kids were Japanese in origin (Kirby, Sonic X, Shaman King, etc.), retailers just formatted them all as 'edited' (meaning they might be a bit rearranged or cut, and they don't include the original Japanese soundtrack) even though anyone with half a brain knows that TMNT is all-American.
In actuality, there are a few (too many) DVDs for the new TMNT cartoon series that are incomplete. Some people call that 'edited', but it's just a case of American animation being spurned by the snobby animé geeks who run the company. So, a lot of the first season volumes have only one credit-roll per disc, and many of the multi-part eps have only one narrated intro for its two or three parts although they still have multiple title sequences.
