They definitely do, I have a little snippet on it when I hacked my Roku TV here: https://blog.ammaraskar.com/roku-tv-philips-hues/#reverse-en...
It is fundamentally a citizen data security and data privacy issue, which regulation and the law can solve for. But asking nicely or trusting corporations and management? lol, rofl even.
That the Television Business transformed from a) an advertising conduit to b) a propaganda conduit to c) a live-surveillance technology tells you all you need to know.
Whether the Corporations answer your questions or not, their claims of doing The Right Thing are untrustworthy.
Here's the APK in case you'd like to take a closer look: https://files.zajc.tel/unlist/6361bb6b86f2ed10e2e75a0deb3269...
(i am joking but the cognitive dissonance about telemetry is so stupid. you are watching TV on a subscription service, someone already knows who is watching what.)