Microsoft hopes to "double" its entertainment offerings over the next year, highlighting four partners during its pre-E3 media briefing: Nickelodeon, Paramount, Machinima, and Univisiona.
Microsoft is also adding the NBA and NHL to its content partners, specifically citing the latter as launching next season. Additionally, ESPN's app will be updated to include 24-hour programming from other ESPN channels: ESPN 1, ESPN 2, and ESPN U. Currently, the ESPN app on Xbox 360 only features content from ESPN 3.
Update: Here's the full list of entertainment apps planned for the service.