Actually, TV shows on iTunes come in either standard or HD version. Sometimes, you need to look around to find more options.
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Yes itunes do have HD movies
The best place to find HD desktop wallpaper images is on Google images. There one will find the biggest selection of HD images. One can also download these images from the iTunes store. on can also download it from www.hdwallpaper4pc.com
Unfortunately, you can't. You just have to wait for it to download and then delete. This is particularly annoying if you buy a movie or tv show and you don't want the HD version. You basically have to wait for many GBs of files to download and then delete them.
HD shows will show up on a HDTV without any HD services through the cable or satellite companies. HD shows won't show up on any other kind of tv without subscribing to HD through the cable or satellite company.
No they do not.
You have to upgrade to the full premium version to experience the hd accelerator and the Itunes download accelerator.
I think you mean iTunes? No it requires either WMP or Zune software.
No but you can get HD texture packs with the help of a patcher.
You can download them for free from the playstation store or of course, blu-ray discs
no but you can downlaod the zune software from zune.net
You can download free HD videos from YouTube, if you are a member. You can also download a limited number of videos through Real player. Some local TV providers also allow free HD download of certain content.