The deal begins today and will also include US current hits such as 'Prison Break' and 'The Shield'. The deal covers shows from Fox as well as cable channels FX, Speed, Fuel and the 20th Century Fox Television Library.
The shows are being sold on iTunes for $1.99 an episode and can be watched on iPods or computers.
The deal follows the news that Warner is to start selling programming on BitTorrent -- the file-sharing service that up until now has been the scourge of film studios who claim that piracy is hitting their industry.
In a move that signifies just how much mainstream entertainment giants are beginning to embrace the digital age, Warner plans to offer BitTorrent customers legal downloads of films including 'Harry Potter and the Goblet of Fire', which will appear on the same day the DVD is released, 'Natural Born Killers' and the Al Pacino classic 'Dog Day Afternoon'.
In the past, users of BitTorrent have been sued for illegally sharing films online, but the advantage for a film distribution company is that the peer-to-peer service makes it faster to download than if it is done from a central server.
Warner has not yet released costs for the downloads, but the Wall Street Journal reports today that it could be as little as $1 a title.
Ashwin Navin, president and co-founder of BitTorrent, told the newspaper: "We're working with a user base that is accustomed to not paying for content."
Last week, Channel 4 said that it was making episodes of 'Desperate Housewives' and 'Lost' available to download.
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