Some of the most recently-released LG ThinQ TVs have been advertized as Amazon Alexa-capable. However, customers in the US may have noticed that this apparent functionality was missing - until now. The OEM has announced that the smart assistant app on these devices should become active over the next few weeks.
https://www.notebookcheck.net/2019-LG-TVs-with-ThinQ-AI-in-the-US-will-be-able-to-use-Amazon-Alexa-soon.422738.0.html