[REQ] MLB Network now streaming

MLB Network is now streaming free (with a cable subscription) from both their website and the At Bat app on mobile.  It does not yet seem to have Chromecast or Roku support, so it would be nice to see Plex fill that gap.

http://m.mlb.com/network/live

Can someone come up with a simple plugin that would let you watch this on the big screen?

Thanks