Complex sentence: On April 2,2007, NBC announced that the series would be pulled after the April 16 episode, presumably because of insufficient viewership, and that unaired episodes would be streamed online on NBC.com as well as downloadable from iTunes.
Split into simpler sentences: On April 2,2007, NBC announced that the series would be pulled after the April 16 episode. It was also announced that unaired episodes would be streamed online on the NBC website, as well as downloads available from iTunes.