The Roku interface is great and I would much prefer it over the likes of Apple TV.
However, Roku collects your viewing data (including by taking screenshots) and anything else it can about you (eg. the TCL Roku TVs have mics) and sell it to its valued partners.
> On Roku-powered smart TVs, you can turn off ACR by going to Settings > scroll down and select Privacy > Smart TV Experience.
> Next, uncheck “Use Information for TV Inputs” to disable ACR. Although this will stop your Roku TV from identifying your content on the pixel level, Roku can still collect data about the Roku TV streaming channels you’ve installed and use.
> To prevent personalized ads on your Roku profile, go to Settings > Privacy > Advertising, then check “Limit ad tracking.” Note: This setting is also available on Roku streaming gadgets.
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> (eg. the TCL Roku TVs have mics)
Is there any evidence that they transmit anything from the mics?
However, Roku collects your viewing data (including by taking screenshots) and anything else it can about you (eg. the TCL Roku TVs have mics) and sell it to its valued partners.
This is all in the EULA.