A new Hue Play HDMI Sync Box with 4 HDMI ports to sync your lights with your TV has just been announced. Not exactly cheap but it does support HDMI 2.0b and 4K HDR 60Hz. Lack of HDR10+/Dolby Vision is an issue though.
https://www2.meethue.com/en-us/p/hue-hdmi-sync-box-/046677555221
https://www.theverge.com/platform/a...sync-box-philips-hue-play-hdmi-passthrough-4k
https://www2.meethue.com/en-us/p/hue-hdmi-sync-box-/046677555221
https://www.theverge.com/platform/a...sync-box-philips-hue-play-hdmi-passthrough-4k