James Tucker en a récemment parlé sur une interview de ToonZone (mais j'ai toujours pas compris ...

) :
TZN: I'm a bit confused about the first season vs. the second season, and how “Mystery in Space!” is billed as the second season premiere. Was the show signed for two seasons?TUCKER: Generally, you get an order of 26. How they make it a season is more on the network's end than ours. We created 26 episodes when the show was picked up by Cartoon Network, but then their programming execs break them up into whatever works for their scheduling. They dictate what constitutes a “season.” It doesn't affect our production because we're going to complete the full order of 26 episodes. In fact, I just finished approving color on the 26th episode.
We did know that at mid-point in the 26 episode order, we wanted a two-parter. It was more of an idea that it was an event, not a season finale. You can't assume anything. We just try to write the best stories possible. Some stories merit a two-parter, and the fans love the variety. On our end, we're just making the best show we can.