Poised to be one of the biggest new shows of the 2011-12 TV season, Terra Nova offered a massive science-fiction spectacle. It was about a group of people who abandon the polluted, dystopian Earth of 2149 to serve as "pilgrims" and set up a new colony in a new land—Earth, 85 million years in the past, a setup that made room for cool futuristic technology like time machines and lasers as well as dinosaurs. Terra Nova was first announced by Fox in spring 2010, but didn't the air until more than a year later, because it was such a complicated production—259 different sets were built, and the writing staff was completely replaced, to name two roadblocks. The budget for the two-hour pilot was $14 million, and $4 million for each subsequent episode, easily making it among the most expensive shows in TV history. Despite a huge advertising blitz from Fox emphasizing the involvement of executive producer Steven Spielberg, the first episode drew 7.2 million viewers, and ratings never really improved. Terra Nova maintained a relatively small but loyal audience all the way up to episode 13. In that installment, the time-traveling pilgrims come across a ship dating to the 18th century. Nobody is aware of how it got there...or who might be on board. Were there more visitors from the past (or future, as it were)? Were they friendly? It's not clear, because the episode ended without an explanation—and then Fox canceled the show.