Interesting story over at The Hollywood Reporter: should NBC give an end date for Heroes like ABC gave an end date for Lost?

It's an intriguing idea. If they were to say that Heroes was going to end, let's say, after the 6th season, then the writers and producers could actually start planning the story in a certain way and give it a real ending. I also think that if the show were to have a definite end date, fans and former fans would watch the show, knowing that it is actually going somewhere. James Hibberd makes a good case, saying that scarcity increases demand, that it will probably increase ratings, and the show is, well, a goner anyway.

Of course, this could probably be said about a lot of shows on TV, that giving them an end date would make the stories better and get fans interested. Except for According To Jim of course. ABC just renewed that the sitcom through the 2021-22 season.