Comcast says its livestreaming app did very well during its limited release, so the company's now making it available to all Xfinity customers. The app, called Xfinity Share, gives you a way to broadcast video streams, photos and even previously recorded videos not just on your own TVs, but on other subscribers' TVs. It also lets you share from mobile to mobile, though, if that's more convenient. Xfinity Share used to be exclusive to Triple Play package customers, but now it can be accessed by every voice, video, home and internet subscriber. However, the recipient still needs to have an X1 DVR-ready set-top box to see what you're trying to send them on a bigger screen.