Comcast launched the beta version of its new standalone streaming video service yesterday, called Watchable. The service — available on TV, mobile and desktop screens — features ad-supported content from more than 30 digital producers including AwesomenessTV, BuzzFeed, Scripps Networks and Vice Media. “Initially, the service is being supported on iOS devices, at Watchable.com and [for] users of Comcast’s online streaming platform, X1,” notes The Hollywood Reporter. “Watchable is the latest in a string of standalone streaming services from media giants looking to capitalize on the large audiences that have amassed for digital brands on YouTube and online platforms.”