The truth is that after watching episode 19 of Heroes yesterday, I am very clear that at this moment it is possibly the only series that I continue because it has me hooked. I also follow Lost and Prison Break. The latter was initially prepared to last one season, but due to the resounding success it achieved, checkbook in hand, they extended it, as you know, up to 3 seasons, ending the second PREDICTABLE form, which returns to the beginning of the series (only in reverse). I think it is a series that people will continue watching to see how it ends (Or one that I know, to see the protagonist).
I think the case of Lost is similar, since the development of the plot is so extremely slow that when you go to watch an episode you think: “Let’s see if they tell something interesting today”, but that only happens in one out of every 3 chapters and you end up swallowing chapters as insubstantial as the one about Hugo and Charlie’s van…
In short, I highly recommend Heroes again, which I hope lasts only one season…