While the Chromecast continues to be Google's best TV offering, the more powerful Android TV, which debuted at I/O last year, has struggled to make a strong impression to date. Google clearly isn't done with the platform yet, as Android TV devices like the Nexus Player now have more than 600 new channels to choose from.

Google has updated the Play Store for Android TV to show off the new apps, which include sports, gaming, news, and others, and users can now browse through the new selection via search or by browsing through 20 new curated collections. The news expands on the Android TV Channels initiative Google announced last week at I/O. With the next version of Android TV, users will be able to program content from the likes of The Huffington Post and TED alongside broadcast networks like ABC and NBC.

Competition for set-top box supremacy is still fierce

Competition is still fierce, and Google still has a lot to prove to make Android TV a viable platform. Roku already has more than 2,000 apps of its own, and Amazon's Fire TV gained 600 new channels this week. Meanwhile, Apple, which wound up scrapping next week's unveil for the new and improved Apple TV, is reportedly planning its own television service for later this year.