Fox has nixed plans for a two-hour May sneak preview of the upcoming sci-fi series Terra Nova.

/terra-nova-to-debut-this-may-on-fox/Back in January, we reported that Terra Nova would debut with a special two-hour, two-night premiere on Sunday, May 23 and Monday, May 24. Now Fox has canceled that event, citing the need for more special effects work to be done on the show. Here's what Fox Television president Kevin Reilly had to say about the canceled sneak preview.

"Terra Nova is one of the most ambitious television series ever produced. The cutting-edge visual effects used to create the world of Terra Nova, which is of massive scope and scale, require more time to be realized. This aspect of the series is essential, so we are pushing back the special early preview date to give the visual effects team the time needed for their ground-breaking work."

Fox will now air the Season 1 finale for The Chicago Code on Monday, May 23 and the Season 2 finale for Glee in place of the Terra Nova event.