CBS is planning to add star attractions to its "Innertube" online streaming service, which competes with Apple's iTunes Music Store in the digital video download arena. Innertube initially offered internet users free access to TV shows, but restricted the content to non-primetime areas of the network's lineup. Such hit shows as CSI and Survivor will be available starting in September to stream the morning after a given episode has aired, and will remain available for four weeks following each broadcast. CBS also vows that each episode will be free to stream with a "limited" use of commercials to help address costs, according to Electronista.