Apple TV with and without tvOS supports closed captioning, so the deaf or hard of hearing can properly watch TV episodes and feature-length movies. Compatible episodes and movies are denoted with a CC (closed captioning) or SDH (Descriptive Audio) icon in the iTunes Store either on the Apple TV or in iTunes itself. The viewer can customize the captions in episodes or movies with styles and fonts that are more conducive to their hearing and/or visual impairment.[73] Apple's Remote app on iOS devices allows control of the Apple TV from an iPhone, iPad or iPod Touch.[74]
Apple offers H.264 1080p movies and video podcasts on iTunes.[98] In comparison, Blu-ray Disc films are 1080p H.264 or VC-1 video encoded at rates of up to 40 Mbit/s.[99] Apple TV's audio chip supports 7.1 surround sound,[100] and some high definition rentals from iTunes are offered with Dolby Digital 5.1 surround sound.[101] There is an Apple TV export option in QuickTime which allows content in some formats that the device does not support to be easily re-encoded.[102] Applications that use QuickTime to export media can use this; e.g., iMovie's Share menu,[103] iTunes' advanced menu,[104] and some third-party content conversion tools.[105]
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