Netflix has been available on the PlayStation 3 since 2009, and was one of 11 entertainment apps available on the PlayStation 4 at launch in November.
HBO did not provide details on when the PlayStation apps would be available. According to Sony, about 25 million PlayStation 3 consoles are in use in the U.S.
Separately, Sony announced at the 2014 International CES last week that it plans to launch an over-the-top TV service, delivered to PS consoles and other devices, in a test sometime this year.
HBO Go — which requires a pay-TV account with HBO service to access — already has the broadest device support among cable or broadcast TV networks, currently available on 12 platforms: PCs, Macs, iPhone, iPad, Android smartphones and tablets, Apple TV, Roku, Google Chromecast, Microsoft Xbox 360, Amazon Kindle Fire and Samsung Smart TVs.
HBO Go provides access to all of the network’s current and past original series, along with movies, documentaries and specials. The apps are free to download but to watch video, users must have an HBO subscription through a cable, satellite or telco TV provider.
HBO CEO Richard Plepler announced the plans to bring HBO Go to PlayStation at the BuzzFeed Brews event Thursday evening in New York.