Another 70 episodes of cult cartoon Rick And Morty have been ordered.

This is a big increase on the 31 episodes that have been made so far and underlines the success of the sci-fi comedy animation following the space/time travel adventures of scientist Rick and his grandson Morty.

Dan Harmon, the show's co-creator told GQ that it took a while to sort out the new deal for the fourth series.

“It was a lot of back and forth, but Justin (co-creator Justin Roiland) and I just needed enough episodes and the right kind of deal structure that would give us permission to do what we want to do, which is truly focus on the show. We got all that, and we’re both very excited.”

Read the GQ interview with Dan Harmon here.