Instead of searching for unofficial keys, consider these secure options for watching and recording HDTV: Download it from Uptodown for free - BlazeVideo HDTV Player

Older versions of this software, specifically version 6.6 Professional, have known Universal ASLR + DEP Bypass vulnerabilities that can be exploited by malicious files Exploit-DB

: If you haven't bought it yet, you can often download a trial version from the BlazeVideo Download Center