For some time now, ITV have been the only UK TV company to make their content available using silverlight, which also uses wmv behind the scenes. That has been great for Media Center users, because it has meant that the video played well on media center and on extenders.
It looks like on Friday ITV switched from Silverlight to Flash, which has temporarily stopped it from working in TunerFree. Apparently the reason is that they want it to be supported on as many computers as possible. Shame for media center, but I can see their logic.
Anyway, look for a TunerFree update in the next week or so.