User blog comment:Paul.rea/Season 3 - Episode 1 - Page 1/@comment-67.163.228.233-20121217023259/@comment-4091815-20130105031207

That is logistically impossible. They may still be filming the last 12 episodes of the season when the show starts airing in June - but the time it takes for post production and CGI would prohibit much less than a 4 month turnaround for the episodes and that would be pushing it.

The final episode of season 2 was still being edited right up till a week before it aired and it was filmed in the spring.

It takes months.