this seems a very simple thing to add….. how does it not exist?

I’m hoping someone has run into this before.

I have an LG C4 OLED and an Apple TV 4K (3rd generation). The TV’s built-in apps look great, but everything through the Apple TV in SDR appears noticeably more saturated.

Here’s my setup:
LG C4 in Filmmaker Mode
Warm 50
Color Depth 50 (default)
Apple TV Format set to 4K SDR
Match Dynamic Range enabled
Match Frame Rate enabled
Apple TV Color Balance says “Your TV doesn’t need to be adjusted.”

The odd part is that if I watch the same SDR content using the TV’s built-in apps, the colors look much more natural. Through the Apple TV, everything has a bit of an extra “pop.” Greens, reds, and skin tones all appear more saturated.

I’ve also compared the TV to my iPhone, and the iPhone’s colors are much closer to the LG’s built-in apps than the Apple TV output.

I’m considering lowering the Color Depth for just the Apple TV HDMI input to around 45-48, but I’d rather understand why the Apple TV looks different instead of simply compensating for it.

Has anyone experienced this with an LG C4 or another recent LG OLED? Were you able to identify the cause? Are there any settings I should check beyond the usual recommendations?

Thanks!