Watching YouTube (S GOOG) live streams on the TV just got a bit easier: Chromecast owners can now beam any live video streams straight from the YouTube iOS and Android apps to Google's streaming stick. Casting of live YouTube's live streams wasn't supported at all when Chromecast launched last year, and YouTube added the capability to cast live streams to its desktop app earlier this year. Now, all we need is a way to actually find all those live feeds -- YouTube's live streaming directory mysteriously disappeared a few months ago.