I wonder if the effect is due to the fact that the TVs at Best Buy and other big box retailers are set to "torch" mode with brightness and contrast at very high settings. Setting the contrast at high levels creates a halo effect.
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AvFan
Outlaw 976 | ATI 2005 | M&K 850s Left, Center & Right, Surround-55s, MX-70B Sub | Harmony 950 remote | Panamax 5100 | OPPO UDP-203 | LG OLED55B7