Over the past three years, the Internet has become a major secondary distribution platform for free-to-air broadcast programming. Whether through network programmers’ own sites, such as ABC.com, or through aggregators like Hulu and TV.com, ad-supported broadcast programming today is generally available online shortly after its initial airing at no cost to the user. However, programming such as ESPN, TNT and the Discovery Channel, which originates on pay-TV platforms (i.e. cable, satellite and telco TV services) has been a different story. Read more over on GigaOM Pro, our subscription only research service. (Subscription required and costs $79 a year.)