What are the requirements for playing movies, TV Shows, or music videos in iTunes?
You need iTunes 9 or later to access iTunes Store. iTunes requirements vary by version. Playing HD video, an iTunes LP, or iTunes Extras from the iTunes Store requires a 2.0 GHz Intel Core 2 Duo or higher and 1 GB of RAM. iTunes Store movies (SD and HD) and TV shows (HD) require an HDCP digital connection.