Just a little bit of reviewing stuff.
First SciFi showed The Science of Stargate, a year or more old psuedo-stargate-science-for-dummies type special that Amanda Tapping did a good job of narrating, although the info was old (as the show was from the UK) but the parasite stuff was neat, if not a primer. If you want the real dirt on parasites, read Parasite Rex. :)
Okay, enjoyed SG1 but only have the energy to really review one show, so it's Stargate Atlantis: