I only say what it is. And I don’t want argue with anyone here.
You have problem with capture device, signal etc… You can’t make proper records.
It’s not your fault it’s just damn new tech when unexpected things happens.
Tip for you.
If you want to have proper HDTV record for something, ask - make request and I hope someone can help you.
I hope someone will proper record it from rebroadcast and give it to you,
or if I get it you will get it too.
Cheers!