what is wpa passphrase and how do i find out where this info is? i want to have internet on my tv and its asking that!
This is a Comcast user to user forum, and as such does not really deal with WPA, which is a security feature of a LAN (wi-fi if you will). You should be checking a combination of your Router and TV documentation.
If you have a wireless gateway from Comcast and the password hasn't been changed there will be a sticker on the bottom of the device that lists the passphrase you need. It will be a long string of letters and numbers that is case sensitive.