What crucial role do Megan Fox's feet play in the Transformers sequel? It's hard to tell, but they appear to be incredibly important, judging from a new official behind-the-scenes video. And a new image claims to show a new look for an important villain. We also have spoilers for the third (!) episode of Joss Whedon's Dollhouse. Plus tons of videos and insights for Heroes and Smallville. And there are shocking spoilers for Chuck, Sarah Connor Chronicles, Knight Rider, Fringe and Sanctuary. Watch out for falling spoilers! Transformers: Revenge Of The Fallen: Depending on whom you listen to, Megatron either isn't in Transformers 2 at all, or he's back and his new vehicle mode is as a tank. Well, here's some allegedly leaked concept art showing the new look of Megatron from the new movie, including tank treads on his legs and some kind of huge-ass canon. It looks like fan art to me, but then again, that's what I thought about that Long Haul/Devastator art last week, and it seems like that was genuine. Bigger version at the link. [TFW2005] Meanwhile, Wal-Mart posted a second behind-the scenes video of the filming of the new movie, and there's literally 10 seconds of spoilerage in it, with Shia asking Megan to take care of a "sliver" for him. (The sliver of the All-Spark he's rumored to have?) The rest of the video is a bizarre thing where make-up people use tiny portable fans on Megan's feet while Shia smirks from the sidelines. [TFW2005] Dollhouse: Does the amnesiac-agent show have any actual scripts for episodes beyond the two pilots that creator Joss Whedon has written and directed? Turns out yes. A casting call went out for episode three, "The Target." In that episode, we'll get to know Richard Connell, an easy-going twenty-something who's ruggedly handsome and charming and "very athletic." We'll also briefly see a trustworthy Park Ranger in his thirties or forties. [SpoilerTV] Fringe: The show is already adding a new recurring castmember: Ian Spencer, a twenty/thirty-something hipster whose forensics expertise comes in handy on some of the tough cases. Plus he's got that hipstery sense of humor thing. [EW] The crew will eventually investigate mysteries outside of Boston, because the Pattern is worldwide, yo. And there are many stories to be told about Walter's cow. [E! Online] Heroes: According to the latest print issue of TV Guide, Mohinder's new superpowers include super strength and this leads to him having "messy" sex with Maya. (Messy because he accidentally squeezes her too hard with his new super-strength? Sorry, couldn't resist.) There's a lasting effect from Sylar's attack on Claire in the first episode: she's unable to feel pain afterwards, and it makes her feel less human. That, in turn, makes her pissed off and eager to fight back. And she's on a collision course with Elle. Some of the twelve escaped villains want revenge on HRG, in particular, for bagging and tagging them. But some of the villains may have been wrongly accused, and may not be as bad as you'd think. New character Knox gains strength from his victims' fear. Future Peter stashes Present Peter in the body of a villain named Jesse, and after the breakout, Future Peter goes to the scene of a bank robbery trying to retrieve Present Peter. Plus, here are a couple of new behind-the-scenes videos, plus six clips from next Monday's season opener. [Heroes News And Spoilers]

And yeah, it sounds like Elle and Sylar are having a baby together... in the future, natch. [Zap2It] E!Online's Kristin posted some pics of Seth Green and Breckin Meyer on the set of Heroes. Not surprisingly, they look like Seth Green and Breckin Meyer. There's also a pic of Hiro. Is that whom they're counseling? I sorta hope so. [Watching Heroes]

Terminator: The Sarah Connor Chronicles: John's rebellious behavior "gets way worse" in the next few episodes, culminating in a sequence where he "goes off" with Uncle Derek, says actor Thomas Dekker. The fifth episode takes place in a really hot desert, and John wears crazy army fatigues. And Dekker thinks John really is in love with Cameron, sort of. Also, John meets Agent Ellison at last in the tenth episode of the season. [Sci Fi Wire] Smallville: Lana comes back in the tenth episode of the season, and then the Legion of Superheroes shows up in the eleventh, as we've mentioned. [EW] Just because Davis Bloome is a nice guy when he's not having his mysterious Doomsday-esque blackouts, doesn't mean he's a one-dimensional saint, says actor Sam Witwer. He had a rough upbringing and will tell you to back off if you come on too strong. When Clark first meets Davis, he's confused by who this guy is and why everybody's paying attention to him. As for Davis' Doomsday mode, he'll look like you'd expect. But the producers are following the philosophy that Jaws was a better movie because you didn't see the shark that much. In the same way, you won't be seeing that much of Doomsday. But when you do, it'll rule. [SamWitwerFans] And it sounds as though Lois either gets superpowers, or is impersonated by someone with superpowers, in episode 8, "Bloodline." SpoilerTV got hold of a snippet of the episode's script, and it includes scenes where Lois stalks into a personnel-only area in a hospital, and when a doctor challenges her, she grabs his stethoscope and super-blows into it, making blood fly out his ears and knocking him out. And later, she wants a reporter to give up his slot at the archive computer, so she slams him into the desk and knocks him out. [SpoilerTV] Oh, and here are some more sneak peeks from Thursday's new episode, plus a featurette. [SpoilerTV-Smallville]

Chuck: Here's the official synopsis for season two, episode three, "Chuck Vs. The Breakup."

Chuck (Zachary Levi) is overcome with jealousy when his nemesis Bryce Larkin (Matthew Bomer) - and Sarah's (Yvonne Strahovski) ex-lover and partner - makes an unexpected return. Chuck and Sarah's growing feelings for each other are tested when their latest mission requires Sarah and Bryce to pose as an extremely affectionate couple. Meanwhile, Morgan (Joshua Gomez) faces his own challenge at Buy More when he must deal with a gang of bullies, from a neighboring sporting goods store in the strip mall called, the Mighty Jocks led by the fearful Mitt.

[ChuckTV] Even though Chuck and Sarah go on a date in the first episode, we won't really see the nerd get together with his handler. They definitely don't hook up or consummate their romantic tension in any way. And then of course Chuck's ex Jill turns up, mixing things up further. [Sci Fi Wire] Knight Rider: Our day wouldn't be complete without some Knight Rider spoilers. Here are some pics of the KITT Cave. It's amazing how much cool design work went into the backdrop on a show that looks like it's really going to be horrendous. [Knight Rider Online] Sanctuary: And here are some promo photos of Amanda Tapping's new show Sanctuary's debut episode. Could this be the replacement for Flash Gordon the Sci Fi Channel's been eagerly looking for? [SpoilerTV]