Instructions
Navigate to "PlayStation Store" under the "PlayStation Network" menu. Press the "X" button to enter the store.
Navigate through the menus until you find the MegaTV application. Press "X" to add it to your cart for download. All downloaded applications go here, regardless of whether they cost money or are free.
Navigate to "View Cart" and press "X."
Press "X" on "Proceed to Checkout."
Press "X" on "Download" after the confirmation screen.