https://www.cnet.com/news/samsungs-2019-tvs-will-work-with-amazon-alexa-and-google-assistant-ces-2019/

2019 televisions from the most successful TV maker in the world will be able to respond to voice commands issued via Alexa and Google Assistant smart speakers. Examples include power on/off, volume, channel selection and app launching. "Alexa, turn on the TV" or, "Hey Google, launch Netflix" will produce results with Samsung's 2019 TVs.

Separate from hands-free voice command via external speakers, many TV makers also offer built-in voice assistants. They're available by pressing a button and talking into the remote, which can produce on-screen search results and weather reports, for example. LG's 2019 TVs offer both Alexa and Google Assistant, for example, while Sony TVs have just Google Assistant.