Trek returns as a cartoon, a medium befitting William Shatner's acting.
This was the first attempt at reviving Trek, and for the most part, it was pretty good. It's animation, so it's limiting. It's Filmation, so it's even more limiting. Filmation was a little more low-end than their rivals at Hanna-Barbera. Stock footage was constant in their productions and the voice work was usually of lower quality. Not this time, though. The original cast, minus Walter Koenig, provided their own voices, while Nichelle Nichols and James Doohan got to play other roles. The use of animation allowed the creation of better aliens and for situations that were impossible to film with live actors or effects (or just too expensive to film). Unfortunately, it also lent the show a certain stiffness.
The stories were quite good and featured writing from several Trek veterans and even a script from actor Walter Koenig. We finally got to see Orion pirates and see Spock as a child. There were even sequels to old episodes, like the Trouble with Tribbles and City on the Edge of Forever.
All in all, the series was a fine addition to the Star Trek world and stood out on Saturday Morning. It tended to skew more to an older audience, but it kept the youngsters entertained.