'Fringe' execs 'have six seasons planned'

The executive producers of Fringe have revealed that the show could go on for six seasons.

Asked during a conference call about a possible third season, Jeff Pinkner replied that producers are "only limited by our own imaginations".

"If we're lucky enough, we have six seasons that we're really excited about," he said. "It's such a great show to work on, because we're only limited by our own imaginations.

"Once you start to get into this wonderful framework of the characters and stuff, it's so much fun. We're constantly saying, 'Oh, what about this?' and then all of a sudden, we're like, 'Well, that will be a season three thing, yeah'.

"Then before you know it, there's so many things on the season three pile that you realise that it takes shape."

Fringe continues Thursdays at 9pm on Fox.