Finally! HBO GO and ESPN App Come to Apple TV

Apple TV
Source: Apple Inc.
Apple TV

Apple TV just got more interesting.

The tech giant announced that the HBO GO and WatchESPN applications are now available on its Apple TV platform. However, to use both apps on the Apple TV platform, users must already have a subscription to the services via their cable service provider.

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HBO GO and WatchESPN were already available for iPhones and iPads. The move to Apple's set-top box is significant because it makes the device more competitive with other Internet-connected set-top boxes like Roku and Microsoft's Xbox 360.

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Apps like Netflix, Hulu, YouTube, flickr, NBA and the MLB.TV app also are already available on the platform. Unlike the apps available in Apple's app store, the ones on the TV platform are selected by Apple. However, there is speculation that Apple may soon open up the platform for developers so that anyone can build an app for the device. Apple, though, would still have to approve the application, as it does for any apps in its App store.

Apple TV is an Internet-connected device for televisions. Apple is expected to eventually roll out an actual TV set sometime next year.

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—By CNBC's Cadie Thompson. Follow her on Twitter @CadieThompson.