Alexander Us

I've found what is cause resetting HDMI input names to default. It seems it's some kind of a feature of Apple TV 4 and HomeKit. If you added your TV to Home App it will set its own names for HDMI inputs over CEC protocol. Here is the reddit topic: Removing TV from Home App resolve the issue. Hope it helps somebody to close the gestalt and set everything to work as intended. Good luck!

I have the same issue with my LG B8 55 (OLED55B8PLA). After some time TV starts resetting input HDMI names. Not all at once, but step by step. I'm using 3 inputs: ARC for the soundbar, Apple TV and TV box from internet provider (Vodafone). Also USB flash drive is always in TV. I can't figure out the logic behind resetting and I'm sure that this is a bug. Did someone try to reset the TV to factory settings? Does it help?