drngr said:

Yeah definitely a problem with the disc and not how you're playing them back. Besides the jaggies there is also blending, even across scene changes.

I wonder if the other screenshots I saw are from a different release, or if they're just from episodes in this release that aren't aliased.

Some episodes are worse than others, the deinterlacing and up scaling in both my player and TV are lacking, I'll see if I can get my buddies Upscaling player with the Fajouda DCDI chip and see if that helps any.