'Riverdale' spinoff 'The Chilling Adventures of Sabrina' - based on the comic book series of the same name - has already been picked up for two seasons, but will be premiering on Netflix rather than The CW as first thought. Whilst the show is still thought to be set in the same universe as the latter network's show (based on Archie Comics), the two will broadcast away from one another.

Cole Sprouse and KJ Apa as Jughead and Archie in 'Riverdale'Cole Sprouse and KJ Apa as Jughead and Archie in 'Riverdale'

Sabrina the Teenage Witch may best be known to those who watch television as a happy-go-lucky witch, who learns her skills and abilities through training by her aunts, thanks to Melissa Joan Hart's portrayal of the character in the American sitcom series from 1996. This new version of Sabrina however could prove to be the complete opposite, and one of the darkest shows that Netflix will play host to.

Reports this week not only confirmed two seasons for the show, but that they will each be made up of 10 episodes, with 20 episodes in the works in total. The show will be directed by Lee Toland Krieger, who also serves as executive producer alongside Greg Berlanti, Sarah Schechter and Jon Goldwater. Writing for the series begins on Monday, with production expected to kick off in February of next year.

Casting for the titular role started earlier this year, but no official announcements have yet been made as to who exactly will be starring in the new series. Hopefully, that's something that will come in the next month or so, ahead of production.

Of course, with this series now being on Netflix, there is the possibility that it'll be a different show from 'Riverdale' entirely. Whilst crossovers between networks have taken place in the past, they're often quite hard to pull off. We hope that's not something that hinders the show's chances of survival here.

More: 'Riverdale' Stars Say Black Hood Mystery To Be Revealed Soon

'The Chilling Adventures of Sabrina' is currently in development for Netflix. We'll bring you more details on the series as and when we get them.