Cameos galore on the series finale of Avengers and Doctor Who's David Tennant is the keeper of lightsabers!

This week in the world of cartoons, we unfortunately see the series finale of Avengers: Earth's Mightiest Heroes, but we get a very cool Doctor Who/Star Wars crossover and My Little Pony: Friendship is Magic returns!

One of the best comic book-based cartoons in decades, successfully serviced comic book fans…

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This Week's TV: William Shatner mind-probes Star Trek fans, and Adventure Time goes to Mars!

Syfy's Warehouse 13 and Alphas are both back — and both shows are changing up their formats pretty radically. William Shatner is finally getting to the bottom of the Star Trek phenomenon. Walter Bishop explains all about lobotomies. People are getting their backyard redone with Kryptonite. Syfy has its most dignified…

This Week's TV: Erica Durance and Michael Shanks star in the worst thing you've ever seen. Ever.

This week's television is chock full of premieres: True Blood is back! Tron: Uprising and Teen Wolf debut in their regular timeslots. Through The Wormhole with Morgan Freeman tackles a thorny issue. But more than that, there's the debut of a TV show that can only have been greenlit as a result of prodigious amounts of…