Originally the series was scheduled for NBC's midseason schedule after the Olympics. When NBC announced their "winter schedule" it was nowhere to be seen. Day One has also disappeared

Could a regime change, NBC's falling fortunes, or the only-middling success of recent genre shows have killed it? Creator Jesse Alexander has been very silent on the matter on his @globalcouch Twitter, though he has made reference to pitching new projects. Aside from a Sargasso Planet reference, Day One hasn't been mentioned in months.
Hopefully NBC will make some kind of announcement either way about the show's future. With some transmedia tie-ins such as the Sargasso Planet fan site and the Facebook account of one of the characters, Zack Adamski (last updated on December 2), there seems to be a lot of good material to mine, and it sounded as though some other much-missed Heroes folks such as Jeph Loeb would be involved, which would only be a plus. It could also be possible that the network is delaying the series until next season - though it's hard to say, since the network and producer have been very quiet.
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