Sorry to hear about your disappointment Westa. That's really a bummer and I mean that sincerely. I remember being blown away by how good the D8000s looked last year in a bright room (and they really do) and then coming quickly to realize how not good they looked even in dim light -- once I had the chance to see them there.
I also am skeptical the ES8000 is fixing this and now we have rumors of Samsung doing a full-array set as their real flagship -- an admission that the 8000s are not true flagships if this proves true.
We are really at a strange point in TV: There are lots of pretty decent TVs and not very many really good ones. And all these top-end models we want to consider have flaws that are sort of beyond just a little annoying.
I'm reserving judgment on the new Samsungs until I see them and there are more reports... But even if resolved, the lack of a ship date on the 65" makes me less than sanguine I'll personally care.
There is no difference in HDMI cables. If you can see the picture without visible dropouts or sparklies, the cable is working at 100%. No other cable will display a better version of that picture. You're simply wrong if you think there is a better digital cable than one that is already working.