Sports Internet live-streaming has just become a little more mainstream with the NFL and NHL officially getting into the game. Twitter has won the rights to stream NFL games. The social media site will stream 10 Thursday night football games (the games will still be shown on NBC, CBS, NFLN) during the 2016 season. No word on how Twitter will be integrating the feature but it's been speculated that it could fit under the site's Moments feature. The NFL is using Thursday night games, which draws a smaller audience, as it's guinea pig to see how digital distribution works. Things could get interesting in 2021 when the NFL's current broadcast contracts expire. Similarly, the NHL and Yahoo! recently announced a partnership to live-stream NHL games for free and with no subscription required. The partnership allows Yahoo! to air up to four NHL games a week. [...]