Star Trek/Star Trek ANI

This animated show was produced by Hanna Barbera, IIRC. It ran for one season in the late 1970's. It featured most of the original cast performing the voices for their characters, except for Chekov (Walter Koenig), who was replaced by a bird-like alien.

While one would believe that Star Trek could tak full use of the freedom that animation provided, budget restraints were still a concern, and the animation quality was poor. However, it did afford the crew a set of much more encompassing alien landscapes than could be provided by a small studio.

It is of note that the Star Trek animated series Enterprise, while theoretically the same ship on the live action program, had a holodeck just like was introduced on Star Trek: the Next Generation.

(I'll add more to this as I have the time--I have the entire season on Laserdisc.)