When the new animated series premiered I embraced it with open arms. Short of a new live-action show, it was the most exciting development that had come into being so far. Unless you lived through that time, when there was no new Star Trek except for the Gold Key comics (and they were silly), you can't relate to how starved we fans were for "real" new adventures.
(Click on images to enlarge.)
Even a cartoon, done as well as it was by the original show's creators and producers, was a welcome sight. I was right there in front of the TV set when it premiered on Saturday morning, Sept. 8, 1973. And I loved it! I never missed it as far as was possible, and those that I did miss I caught in re-runs.

All too soon, after only 22 episodes from one year of production, the series was cancelled (see article below). The sting was lessened somewhat by the rumblings of a new movie, perhaps followed by a new live-action series, but we would have to wait another five long years. The animated series was, with it's faults, "real" Star Trek to us fans of the time. Watching it now on the recently-released DVD set really takes me back to those days!

Here's a great site devoted to all aspects of the animated series. And here's another one!
Below is a pencil drawing I did of M'Ress in the late 70's. I thought she was kind of cute.

"All right, who's the wise guy that left a flea collar in my seat?"