The 80s Thundercats series is not perfect, but is definitely a entertaining piece of animation history. I think a lot of the action of that show still holds up, but a lot of the dialogue and voice acting is somewhat wooden.
The new series combines beautiful visuals with amazing action scenes and superb voice acting. My only real problem is that the villains seem to have little motivation for being evil, but it looks like we will have a lot of development as the series continues!
Strangely, Thundera has gone from an alien planet, to a kingdom on Third-Earth.
Oh, yeah. Snarf is back. But he doesn't talk! YEAAAAAAAAAAAAAAAAHHHHHHHH!
Thundercats, Ho!