We do not want pages for specific tuner cards, as we do not support specific tuner cards (with a few exceptions like the HDHR you linked to). To be fair, this really isn't tuner-specific information anyway, but is generic channel scanning troubleshooting for DVB-T. This should be moved somewhere more appropriate, although I'm not sure where that would be.
Yes, that's fine. I can re-word the page to be generic and mention the Hauppauge in passing. We need to mention it somewhere so that web searches for the card find the page. What do you think?