I'm with BradM. The show was insanely good up until season 3 and then took a nosedive. Some of the 4th season was borderline unwatchable. Maybe they ran out of ideas although they probably could have just ended it with the last episode where they arrive at Earth and it's just a post-apocalyptic shell of a planet.
Oh well I'll keep watching. Gone too far to stop now (like "Lost").
