I have a Sony Bravia TV. The remote doesn't have a built in microphone (but I have USB microphone hooked up to the TV) which means I can't summon Google Assistant from wherever I am in the interface. However, when hooking up a Bluetooth keyboard to the TV I discovered that the "Windows" key activates the Assistant. I tried looking at different keymapper apps in hopes of simulating a Windows-key press with one of the buttons on the remote but haven't succeeded in doing so. Do anyone know if this is possible, and if so, how?

Another problem I have is that the Assistants language keeps changing to English (UK) forcing me to change back to English(US) every few minutes or so. The TV's language is set to English, though I live in Denmark. Does anyone know a way to fix this so the assistants language is permanently fixed to English(US)?