"jumped the shark" ? what the frak does that mean? ;)
I'd agree that the episodes, general themes and character development seemed to meander somewhat, and in a way I thought it suited the show's premise however I doubt that was intentional in the writing, ;) But they'd throw in curve balls too and there were some cool twists and ideas, especially the one about the map to earth using the constellations, (which as Elsewhere pointed out is now moot with a "new" earth) But Starbuck wasn't exactly the Harbinger of Death now was she? Loose ends,....
Resolving Baltar & 6 as "conduits" for god's angels was, as Spicoli would say, bogus. He's obviously schizo, lol. Starbuck's arc ended with a thud; need we say more? Adama/Roslyn; check. Helo/Athena/Hera; check. Boomer; check. Final Five; check. (karma or justice?) Cavil; check (going out in true jaded nihilist fashion) Cavil was written and played well, IMO. But the whole idea of everyone reverting to a hunter/gatherer lifestyle was bs. Of course there'd be techo-factions that would take over and found the possibly lucrative BSG: Atlantis, but this remains to be seen,..
The show as a whole was excellent, a good mix of character development, innovative production and writing that asked some core questions about identity, morality and belief. But hey, I am/was a fan,...:)
Firefly? I caught a couple episodes but it didn't hook me. Then I saw the movie Serenity, which was awesome. Part of the collection now.