XBMC is a great little app and it’s free.
I haven’t stepped foot in a movie theater in over 10 years and I can watch movies on my PC or run a HDMI cable to my LCD TV and watch them on XBMC
I just found about this app and I’m still messing around with it.
Any NFL with it?
Yes. Get the Sports Devil Addon from the Fusion repository at XBMCHUB.com.
You can watch any NFL game live.
It is not HD but hey, It’s free.
Add Fusion Repository
http://www.xbmchub.com/blog/fusion-easy-addon-installation-for-xbmc/
Run the addon called XBMCHUB Wizard.
Add Xfinity/Xunity repository.
https://showyou.com/v/y-Lr_gQwF7vWI/how-to-add-a-new-source-called-xunity-xfinity
Be sure to get either the XBMC or Xfinity Maintenance addon
Which will let you delete you cache when it gets full.
Have fun!
There is also a superrepo source though it is not official, it has many nice addons.
http://superrepo.org/get-started/optional-methods/
I have not tried it since they chanced the url.