Roku has announced that it has sold more than 10 million of its streaming players in the US to date. Although the number doesn't seem that impressive in a six-year span, it's a clear indication that sales are picking up after it hit the 5 million milestone last year and the 8 million milestone earlier this year.

The company, which debuted its first product back in 2008, also revealed that users have streamed over 5 billion hours of content since then, and it expects that in 2014 alone, its users will stream 3 billion hours of content.

The company also said its players average 48 hours of streamed content a month, compared to around 20 hours spent on Facebook, based on Mark Zuckerberg's recent revelation that Americans spend an average of 40 minutes a day on the social network.

In addition, Roku players feature more than 1800 channels; the company says that's 1,000 more than any other streaming player offers.

While that's all good news for Roku, competition is getting stronger. Back in April this year, Apple's CEO Tim Cook announced that the company has sold 20 million Apple TV units. On the other hand, although Google hasn't disclosed exact sales figure for Chromecast, the company said in March that it has sold "millions” of adapters since it first introduced the device last summer.

Well aware of the competition, Roku is expanding by launching their own line of HDTV sets, dubbed Roku TV. Manufactured by TCL and Hisense, the smart TVs are equipped with much of the same features found on the Roku 3.