Before Valve had commented on the matter, several publications were reporting that Steam.tv was to be a competitor to Twitch's online streaming platform. However, the company has stated that Steam.tv is merely a website to host its Dota 2 tournament.
https://www.notebookcheck.net/Steam-tv-is-accidentally-revealed-and-it-isn-t-a-Twitch-competitor.323798.0.html