TaffyMC devices usually include the USTVNOW addon by default when shipped, however, it does not work because the addon requires a login to authorize streaming through their service. Don’t worry though, the service and registration is free. The way to get everything working is pretty simple but trying to figure it out on your own can be a little time consuming. Please see the steps below to get your USTVNOW XBMC addon working.
Go to USTVNOW.com and sign up for a free account. You will need a current email address.
Now go to your xbmc and to you video addons. Highlight the USTVNOW addon and hit the menu key ( letter c on a keyboard ). This should bring up the context menu for the addon. Click on Addon Settings.
Enter in your login information and save. Close the addon setting and open the addon. The USTVNOW addon should work and stream relatively quickly.