Last week we reported the dates and times of sci-fi shows that will be premiering on Fox and The CW in the fall. ABC has now announced the dates and times for its fall lineup, but since it only includes one sci-fi show, it gets the whole headline. Once Upon a Time is scheduled to debut on Sunday, October 23, at 8/7c.

Executive producers are famed writing team Adam Horowitz and Eddy Kitsis (Lost, Tron: Legacy). This series follows storybook characters who are trapped in the “real” modern world and don’t recall who (or what) they were before. We told you about this show back in May, and showed you the REALLY cool video, so if you haven’t seen it, check it out!

So here’s how our Primetime Fall 2011 Sci-Fi TV Schedule is shaping up:

Thursday, September 15 – 8/7c The Vampire Diaries, The CW

Thursday, September 15 – 9/8c The Secret Circle, The CW

Friday, 9/23 – 9/8c Fringe, FOX

Friday, 9/23 – 9/8c Supernatural, The CW

Monday, 9/26 – 8/7c Terra Nova, FOX

Sunday, 10/23 – 8/7c Once Upon a Time, ABC

Looking good, except of course for that nasty Fringe/Supernatural conflict. CBS is next…

Once again, Once Upon a Time is scheduled to debut on Sunday, October 23, at 8/7c.