Just purchased a Samsung 50 Inch UE50CU7100KXXU Smart 4K UHD HDR LED TV from Argos.
On the Argos site it states " Smart TV features
Voice control - works with Amazon Alexa, works with Google assistant." and on the Samsung site it states "The following TVs have Alexa built-in:
All 2023 Neo QLED, QLED, Crystal UHD, Frame TV, and Smart Monitors." Mine is a 2023 Crystal UHD model. Yet it doesn't have Alexa built in and no one is prepared to explain why it doesn't. I have a sneaking suspicion that there is a way of achieving a small amount of voice control via my pre existing Alexa device and a Samsung app they call Smart things but I think there is a lack of technological know how on the part of Samsung's customer care reps.