Apple today announced that all four of the major networks are offering primetime programs in crisp, clear high definition on the iTunes Store, including viewer favorites “Grey’s Anatomy” and “Lost” from ABC, “CSI” and “CSI: Miami” from CBS, “Bones” and “Prison Break” airing on FOX, and “Heroes” and “The Office” from NBC Universal

The iTunes Store is the world’s most popular online TV store with over 200 million TV episodes sold, including more than one million HD episodes purchased since the launch of HD programming on iTunes last month.

“We’ve got an incredible Fall 2008 TV lineup with over 70 primetime comedies and dramas, including many of the most popular shows on TV in stunning HD,” said Eddy Cue, Apple’s vice president of Internet Services, in the press release. “With over 200 million episodes sold, iTunes customers have proven they love watching television on their computer, iPod, iPhone and TV with Apple TV.”

The iTunes Store features the world’s largest online catalog of TV programs with over 70 primetime comedies and dramas from the major networks and television programs from over 70 cable networks including Bravo, Comedy Central, Disney Channel, ESPN, FX, HBO, MTV, Nickelodeon, Sci Fi, Showtime and USA. Standard definition television shows on the iTunes Store are $1.99 per episode, while HD programs from ABC, NBC, CBS and FOX are $2.99 per episode. Many series offer a season pass option which allows customers to purchase entire seasons at a discounted price.

The list of HD programs now available on the iTunes Store includes ABC’s “Brothers & Sisters,” “Desperate Housewives,” “Dirty Sexy Money,” “Eli Stone,” “Grey’s Anatomy,” “Life on Mars,” “Lost,” “Private Practice,” “Samantha Who?” and “Ugly Betty.” CBS programming includes “CSI,” “CSI: Miami,” “CSI: New York,” “NCIS” and “Numb3rs.” FOX shows include “Bones,” “House,” “Prison Break” and “Sons of Anarchy,” which airs on FX. NBC shows include “30 Rock,” “Heroes,” “Kath & Kim,” “Knight Rider,” “Law & Order: SVU,” “Life,” “Lipstick Jungle,” “My Own Worst Enemy” and “The Office,” and SCI FI Channel’s “Battlestar Galactica” and “Eureka,” and USA Network’s “In Plain Sight,” “Monk,” “Psych” and “The Starter Wife.”

The iTunes Store is the world’s most popular online music, TV and movie store with a catalog of over eight million songs, over 30,000 TV episodes and over 2,500 films including 600 in crisp, clear high definition video. With Apple’s legendary ease of use, pioneering features such as iTunes Movie Rentals, integrated podcasting support, iMix playlist sharing, the ability to turn previously purchased tracks into complete albums at a reduced price, and seamless integration with iPod and iPhone, the iTunes Store is the best way for Mac and PC users to legally discover, purchase and download music and video online.

iTunes 8 for Mac and Windows includes the iTunes Store and is available as a free download from www.itunes.com.