Sinclair owns 21 "Fox" RSNs, part of YES and the new Marquee network. There are a few RSNs they don't own. The biggest impediment I see to Sinclair launching a streaming service is their contracts with DIRECTV and local cable systems. Their content is more valuable to DIRECTV and cable if customers can't get it direct from Sinclair. Selling it separate will undercut their deals with their current distributors.