Fox’s prehistoric drama series Terra Nova will launch with two-night preview on May 23 and May 24.  The series, executive produced by Steven Spielberg and Peter Chernin, is slated to air at 9 PM both nights, presumably following House and Glee. (Terra Nova‘s launch pattern emulates that of the hot sophomore musical dramedy. Like Glee, Terra Nova is scheduled to premiere in the fall) Meanwhile, the network’s upcoming Jamie Foxx/Affion Crockett sketch comedy series will get a preview after American Idol on March 31. The comedy series will then premiere on June 9.