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Sony's 2018 4K TVs keep the focus on OLED, HDR and Android
Google's Assistant AI is baked-in.

Last year Sony kicked off the year by adding OLED and HDR to its lineup, then later pushed Google's Assistant AI as an upgrade for its Android TV platform. In 2018 the company is sticking to those basics on its latest 4K TVs with a few tweaks. It will once again offer OLED TVs in 55- and 65-inch sizes, this time with an updated version of its technology that broadcasts sound directly from the display itself.

Now dubbed "Acoustic Surface," this A8F series appears to pack the upgraded version of Crystal Sound that LG Display is showing off, with support for 3.1 channels of audio instead of the A1E's 2.1. There's no word yet on price, but last year's models launched at $5,000 and $6,500, and currently sell for around $3,000/$4,000.

If those OLED TVs are a little too expensive, then Sony is still offering LCD options as well, with the X900F series. Inside these local dimming LED screens is the same X1 Extreme Processor Sony's using in the A8F, however, it says that new "X-Motion Clarity" tech is in play to reduce blur during fast motion without losing brightness. The X900F will be available in 49-, 55-, 65-, 75- and 85-inch sizes later this year.

All of Sony's high-end TVs are still Dolby Vision HDR-ready, run Android TV and will ship with Google Assistant built-in. Just like previous models, its voice command service is not always listening but can be activated by a button on the remote. Hands-free control is possible if you have an Amazon Alexa device, Google Home or one of Sony's own smart speakers.

Click here to catch up on the latest news from CES 2018.