OK, I take back what I said about Apple TV’s syncing problem with rented movies. While you can’t use the sync function to copy rented iTunes movies to your Apple TV, the solution (courtesy of the iTunes help section) turns out to be simple: just click on the Apple TV icon in your iTunes window, click on the Movies tab and the rented movie should show up with an option to “Move” it to your Apple TV and vice versa. Sorry, Mr. Jobs.