The new technology, such as video in the seats, will also be a source of new revenue for the airline, Brewer said, as customers will soon have to pay to watch the newest content on their in-seat video systems.
Here's a quote from an AC FA on AEF re: charging for AVOD
The info we were given was that the pay-per-view software was being installed for all economy class seats. It will be offered on "select" North-American routes (not sure what that means), and it will remain free of charge until the launch date which will be announced later. They plan to offer games and movies at a charge but the news, moving map and ACTV will continue to be free. Executive class will of course remain free for these new products.