Can I update to HD or do I have to get another Xfinity box
All X1 set-top-boxes support HD. You just have to sign up to pay the HD Fee.
Hi, Glenshipp17! I can check the price for HD Tech Fee in your area. If you would like to get it, please send me a private message and include your full name, the account holder's name as it's listed on the billing statement. Click on my name ComcastElla, then click Send a message.