One notable addition to the second season is the character Chekov, who is introduced near the beginning of the season. For the most part in the original series, or at least in this season, he just spends his time telling people that everything was originated in Russia.
In the end Star Trek’s second season was struggling in the ratings, and the chances of cancellation were getting pretty high. The fans kept it on the air though, with a massive letter writing campaign. But NBC felt no loyalty to these fans or to Roddenberry and the rest of the cast and crew of the Star Trek. As a result, they shifted the time-slots, and Roddenberry got pissy and ditched the show. Someone else would then head the Third season…and the problems would really creep in.
NEXT TIME: The Infamous Third Season