It has been kicked around here before.  Here is a link to a search of this site for "tv converter".

     http://talk.newagtalk.com/search/query.asp?fid=0&action=search&searchforumid=all&keywords=tv+converter&mode=1&subjects=1&messages=1&author=&collapsethreads=1&days=1&datemode=3&custom-start=&custom-end=