Microsoft announced Twitch.TV support is finally coming to the Xbox One. It's integrated nicely from what has been shown. On March 11th (the same day Titanfall releases) an update will enable this feature. Hopefully things will work smoothly and everyone can easily stream KI gameplay.
Link to Major Nelson's story: http://majornelson.com/2014/02/25/twitch-broadcasting-streams-from-xbox-one-march-11th/
The Killer Instinct TV section on the site (Link: www.killerinstinctonline.net/KITV
) has been up and running since the launch of KI but has been pretty crippled by the lack of support by Microsoft. If you're unfamiliar with the site feature, it's a great way for people to see when you're stream is live. You also will get noticed easier since you're stream is basically advertised on the site. You will need to complete some simple steps (i.e. ensuring your Twitch account is integrated with your KIO profile and requesting to be added to the KITV page). You can find instructions here: http://killerinstinctonline.net/index.php/topic,494.msg4640.html#msg4640