Using iTunes 7.1, you can now enjoy your favorite iTunes movies, TV shows, music, and more from the comfort of your living room with Apple TV. iTunes 7.1 also supports a new full screen Cover Flow and improved sorting options to let you decide how iTunes should sort your favorite artists, albums, and songs.
In addition to iTunes, Apple also released QuickTime 7.1.5 (41.4MB), which "delivers numerous bug fixes and addresses critical security issues." This update is recommended for all QuickTime 7 users.
Both updates are available via Software Update and via Apple's support download site.