Comcast (NASDAQ:CMCSA) is rolling out its X1 video service in more markets, particularly west of the Mississippi. It was first trialed X1 in Augusta, GA, then introduced in Boston, Atlanta and Chattanooga, TN. The western deployments are starting mainly in California. The San Francisco Bay area, Sacramento, Stockton, Fresno and Santa Barbara are the latest markets where X1 is now available. Further deployments are planned in the coming months.The X1 Platform includes a new user interface, guide, apps, on-demand recommendations, and can use an iPhone as a gesture-driven remote control.