POPULAR ON-LINE VIDEO hub Hulu has introduced an ad-supported subscription product called Hulu Plus which it describes as incremental and complementary to its existing service.In a post on the company’s blog, CEO Jason Kilar said that subscribers who own select Samsung Internet-connected TVs and Blu-ray players can download a Hulu Plus application from the Samsung app store and start streaming content directly to their TV. Content is also available via Wi-Fi or 3G to the Apple iPad, iPhone 3GS, iPhone 4 or third-generation iPod Touch, and will soon be available on Sony's PlayStation 3 as well. “You can start watching a...