Sci-fi and “geek” TV shows are in abundance this fall, so we devote an entire show to talking about what’s out there, and how good they are. Included in the discussion is “Chuck,” “Journeyman,” “Pushing Daisies,” “Big Bang Theory,” and “Torchwood.” FYI, there’s no BSG material this time. This doesn’t represent a change, just something different. Let us know what …