argghhh... ok, spent all morning setting up a test forum just for this and uploading the files:
http://www.stand318.com/test2/ubbcgi/ultimatebb.cgi Click on the "valid xhtml 1.0" link at the bottom. It needs a good bit of work to be xhtml compliant, and that could very well be where it's choking for web-tv users (not including the stylesheets). Unless Bookie gets to it before me, I'll get these updated, as they are beautiful templates, but I don't think we can expect that before ubb 6.4. Sorry, there's a lot to be done there