HBO has been a popular programming source for iTunes Store users since its debut three years ago due to the premium cable channel's highly-regarded original programming. As noticed by one MacRumors reader, the iTunes Store has just begun offering HD versions of a number of HBO shows, adding another option for those looking for higher-quality content.
As with most HD content on the iTunes Store, episodes carry a $1.00 premium over their respective standard-definition versions. Most HBO content is priced at $3.99 HD and $2.99 SD, although some shows come in at $2.99 HD and $1.99 SD. The new HD offerings appear to be available in the United States and Canada.
Article Link: HBO Shows Now Available in HD on iTunes