I only watched the first 2 seasons this past week (cos my xbox in being repaired lol) i gotta say i ain't too impressed with season 3 so far, i found myself messing on the laptop rather than focusing on the tv. Maybe it's just me lol.
Advice for people who download shows weekly, use google and type "heroes s03e05 rapidshare.com" replace heroes and series and episode numbers as needed and i suppose you could leave out the rapidshare to find on other file share websites or torrent. I been downloading american shows for years and since i started doing it like this i normally download the top result every time which is better than looking through all different sites for it.
Because your searching the exact filename you will notice you can download them alot earlier too, i get my shows around 5am normally (like hour and half after it's finished in usa)