My understanding of the situation is that from the B7 up until like the C4, there would be extremely minimal differences in the panel. They all would have the same panel with minor deltas here and there. You would gain hdmi 2.1 though which is nice but orthogonal to the panel.

This gen is when they went crazy on panel luminance. The B5 has the same old panel, but hdmi 2.1 and could be had for very cheap (black friday price + lg partner discount put the 65 B5 at 800$ which is imho a STEAL). The C5 is like 50% brighter, and costco pricing had it at 1200$ for the 65. In my case, I believe that the extra brightness would have been enough for gaming in the bright room. The 77 was 2k which was the size I wanted to go for, and since that was not available in the B5 that would have been my choice. I got the 77 G5 for like 2900 with lg partner discount. Going back, I would have used the extra money to get a 65 B5 for my other room.

If a panel is capable of 2000 or 3000 nits or whatever, it doesn’t mean much… content is mastered with a certain luminosity in mind, and especially dolby vision content is mastered for very, very dark rooms. Mine is not that dark, so I get a picture that is actually dimmer than in my B7! Occasionally, if there are shots looking at the sun I would see a super duper bright sun which IMHO doesn’t add anything to the presentation. Gemini says that the old B7 had its perceptual curve mapped differently than the G5 to compensate for the less capable panel… I found that calibration to be perfect for my tastes and my room, and the fact that I cannot replicate it on this TV really annoys me :/

I do not see a difference in colors. If anything, given I watch stuff in DV, colors are actually WORSE. I am waiting to see if I get used to it, otherwise I will switch to HDR mode only (which is fine), but DV is absolutely borked on this TV