Ever since the web became available, TV execs have been struggling to integrate both mediums. Well, in my opinion, Heroes is the first show that gets the show/web integration right. How? The comics. After airing each show, NBC posts to the oficial Heroes website a comic that expands on the characters on the show. It is an amazing idea, it gives additional background to the series, additional plot developments, and more details on the characters in the show.
Of course, the TV/web integration doesn’t stop there… for the time being, you can watch all episodes of Heroes online for free!! You should definitely check them out, it is one of the best shows currently on TV - and the second half of the season starts this coming monday, so you have time to catch up during the weekend.