One of the most successful of modern sitcoms, The Big Bang Theory has been an anchor in CBS’ lineup for years, and now it will be for years to come. Today the network announced that the series has been renewed for three more seasons, which means it will be on air until 2017 at least.

The show, which stars Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg and Kunal Nayyar, usually pulls in around twenty million viewers a week, and is currently in syndication already, airing repeatedly on TBS. With ten years, it appears that the leads will never have to work again after this show ends its run.

There are two things worth noting about this. One is that though the show is an obvious hit, the people involved haven’t spread their wings or had the cultural impact of something like Friends. That show averaged more viewers, but still, it’s not like Parsons or Cuoco have been given the same big screen shots that Matthew Perry or Courteney Cox received. It seems likely that’s because the characters are mostly nerdy there hasn’t been the same transition. The other thing of note is that — as is evidenced from the box office appeal of movies based on comic books — there is nothing more mainstream than being a nerd these days, as long as one doesn’t understand what the word meant or coded people as in the first place.

Has The Big Bang Theory gotten stale, or is it as good as when it started?