FULLSCREEN TO LAUNCH SVOD SERVICE ON APRIL 26 Content Meets Community Through Ad-Free Subscription Service Featuring Scripted and Unscripted Originals, Acquisitions and Exclusive Slate From Today’s Leading Creators AT&T Joins As Premier Launch Sponsor, Offering Programming and Marketing Support Pictured above (L-R): Shane Dawson in ‘Shane & Friends”; Jack Howard and Dean Dobbs in ‘Jack …