All right, is okay to say I liked this episode? Because I did. First of all, we get some great moments involving Hiro and Claire in the past both dealing with their families, which of course "family" was the common theme obviously in this episode. I just like the idea that Clarie was the one who helped HRG come up with the name "Clarie Bear" and that was made him be able to find that he could love Claire. I liked the idea of Hiro being able to see and speak to his mother one last time. Oh, sure, it creates all kinds of "chicken or the egg" paradoxes, but hey, that's time travel for you.
Speaking of which, holy crap! Hiro's powerless and trapped in 1991?! Say it ain't so!

Still, I guess that's one way of making Hiro stop time travelling and being too powerful, but geez, I guess that means we're going to see "older Hiro" by the time the present rolls around? Not to mention we get a hint as to how Ando motivation for getting powers--too bad it will be the wrong ones.
And Sylar is back to being his psycho killing self. Not to mention killing Arthur Petrelli and thus sparing Peter from becoming a "killer" Not to mention that line "Don't worry Peter. I won't kill you. You have nothing I need now." By far one of the better scenes with Sylar this season. Although, jeez, as if slicing open Elle's head wasn't enough, he's got to cremate her as well? That was a bit much. Although, that elevator scene with the Pinehurst employee made me think of the elevator scene in Spider-Man 2, so I wonder if that was intentional as a "homage."
Speaking of which, how about that "salute" to Captain America by testing the formula on the grunt? Even got a skinny blond haired, blue-eyed guy for the part.
The only thing that was kind of dissapointing was the whole getting Issac's sketchbook subplot with Matt, Daphne and Ando, but otherwise, much of the other stuff was pretty good, I thought.