If you can't get enough gridiron minutiae and analysis, Comcast has just unveiled Football Extras for its X1 sports app. It'll work in a similar way to Comcast's Baseball Extras, which was delivered to baseball stat fans earlier this summer. Armchair quarterbacks (and hardcore gamblers) will get info like injury reports, pre-game comparisons, fantasy league stats, win/loss probabilities and post-game analysis. Relevant stats will pop up during a telecast, or can be selected from a menu. You can even keep the app running while you watch other programs, in case you need to appease other family members. If you've got a Comcast X1 set-top box, you should see the app shortly.