Emeryville-based MobiTV, a provider of mobile and broadband television services, said today that it has more than two million paying subscribers. The firm provides live television services delivered via broadband and mobile. MobiTV said that the number more than double its base in less than one year. MobiTV is venture backed by Adobe, Gefinor Ventures, Hearst Corp., Menlo Ventures, Oak Investment Partners and Redpoint Ventures.