Comcast customers will be happy to hear that the cable provider has launched a new app today, Xfinity TV Go, for iOS devices. It’s actually a rebrand of the previous ‘TV Play’ app, with a number of new features.

The most important, though, is the ability to stream live television from your iPhone or iPad while on the go. That’s right, as long as you are on a Wi-Fi network (not just the one in your home), you can watch TV…

From the App Store description:

XFINITY subscribers can watch thousands of XFINITY On Demand™ TV shows and movies anytime, anywhere. (formerly XFINITY™ TV Player app)

– NEW – Watch your favorite sports, news and kids networks live.
– Stream TV shows and movies from premium channels like HBO, Starz, Showtime, Cinemax and cable channels like TNT, TBS, Cartoon Network, A&E, AMC, WETV, Food Network and HGTV
– Download TV shows and movies from Showtime, Streampix, Starz, Encore and MoviePlex and watch them when you’re offline.
– Set parental controls for privacy and peace of mind

Previously, the Xfinity TV Player app would only allow you to stream movies and TV shows, so the fact that live TV is now included is huge. The selection is limited though, and doesn’t (yet) include the big 4 stations.

Also worth noting is that there are a few requirements to use the app. You must be on a Wi-Fi network and an iPhone 4+, iPad 2+, or Retina iPod touch+ on iOS 6 or higher. And you must be a Comcast subscriber.

But if you meet these requirements, the app is a no brainer. You can find Xfinity TV Go in the App Store, for free. And if you happen to be an AT&T U-Verse subscriber, it offers a similar app for iPhone and iPad.