According to code found in the latest version of the Google Home app public preview, there may be a Pro version of Chromecast with Google TV on the way.
Chromecast with Google TV (2024): News, leaks, rumors, and more
Low-cost Chromecast with Google TV (HD) goes official (and up for grabs) at last - PhoneArena
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Reviews for Google Chromecast with Google TV - Streaming Entertainment in 4K HDR - Sunrise
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Tech Mi News - Chromecast with Google TV is finally getting the December 2020 patch update, Users are reporting better support for 4K60 streaming. What you need to know Google has released
Google Chromecast Review (2018) - PhoneArena
Chrome 54 for Android rolling out with background audio, article suggestions, more