Heroes

I think the better question is how did he manage to control his hunger and why wouldn't he also instruct Peter on that as well...

Also kind of weird how Peter didn't just magically absorb it from being close. He had to think about it, which he never had to do for other ones like flying...

Oh, and did anyone catch the old dude say Tracy, Nikki, Barbara? I was under the impression from the first 2 seasons that Nikki & Jessica were twins, Jessica died and became a second personality in Nikki? How does this guy not know about Jessica?

Nah, where would that leave Gina? The guy doesn't know about Jessica because she's simply part of Niki's multiple personalities along with Gina.

About Sylar's power i figured since it's so complicated (he needs to understand powers to absorb them), Peter had to understand the "system" to the power i order to learn it. And didn't he tell Peter that he learned to control it out of love for his son? Anyway, i think even if he went into more detail as to how to control it, Peter wouldn't be able to anyway, cause he has always been an idiot with new powers lol.