My ROKU does not have XTV regardless of searching using various forms of ITV.
I do get a warning that it is a non-certified channel but does not allow adding XTV.
That is weird. We’ve had this channel for some time now. Did notice this weekend strange things going on in updating our system. Thought it due to the new ROKU channel being introduced. We have as our devise a Roku stick (cheapie - less than $50) and therefore not yet have access to the newer ROKU channel. Others here at FR have also subscribed to X-TV during the past year. Do you subscribe on your computer or on your ROKU device itself? Sounds like a temporary glitch in their system as we watched it this morning with no difficulty.
In the meantime, try this link to see if it might be of help.
http://streamfree.tv/roku-channels/private/all/xtv-4196-thread.html
Good Luck. Keep trying should it be just a temporary glitch and repaired soon. Progress does not come without a few detours along the way.