Investor's Business Daily reports that the Apple TV will be shipping on Tuesday. This information is not particularly top-secret, as all early web-orders for the Apple TV reflect a March 20th ship date. The Apple TV was originally set to be shipping in February, but was delayed until March. Apple has already seeded users with software updates to support the upcoming product. iTunes 7.1 introduced a new "Apple TV" preference menu that shows all available Apple TV's. Meanwhile, as reported by iLounge, the latest Quicktime update introduced a "Export to Apple TV" feature for Pro users. Last week many customers reported pre-authorization charges for the Apple TV appearing on credit cards.