Television's best holiday celebration is at hand: Shark Week! Stuff your brains with knowledge of the ultimate sea beast. True Blood's Jessica takes the spotlight, Being Human's ghost figures out why she's in limbo, and Stargate's Sheppard is back, sorta.

It's a British invasion this week, as Torchwood takes over BBC America with the acclaimed new miniseries "Children Of Earth." Meanwhile, True Blood gets some vampire competition from Britain's Being Human, and we meet Veronica's father on Ted.

Ed Quinn will save us from fey vampire hell, with one fanged smirk on this week's True Blood. But until Sunday, you've got a new Eureka, and a documentary all about JK Rowling's magical world building, to tide you over.

Finally, some interesting new television! Syfy is premiering the new series Warehouse 13 (think of it as a G-rated X-Files) and Eureka is back for a new season. Also Jason Alexander and Christopher Lloyd team up for NBC's Meteor movie.

This week, discover the delicate dance of nerd mating, and find out what type of bugs are swimming inside your eyeball chewing up your retinas. Clips (and minor spoilers) below.