Sony says Mythbusters and more Discovery TV shows are going away whether you bought them or not
PlayStation To Delete A Ton Of TV Shows Users Already Paid For::Sony says Mythbusters and more Discovery TV shows are going away whether you bought them or not
It should be. But I would be extremely surprised if everything in the terms of service isn't worded something like "you're buying a license to view this content that can be revoked whenever".
It is, and IIRC you don't even "own" a movie even if you physically have it. You own the physical disc, not the content on it. Granted, it's a lot harder for Sony or Discovery to come kick down your door and take your copy of Ice Road Truckers so you have to rebuy it...
There's a line in the EULA when you purchase digital media that says they can revoke your access to it at any time that they see fit. Look it up for yourself.