This is a pretty open secret within the industry. Geographic data can be provided via setup (a lot of TV's ask for a zip code on setup) or usually simply via GeoIP lookup. Dig a bit deeper and you get into service provided by Samba TV and or Inscape and you can find that they're sending back frames of video in a lot of cases to track what you're watching. This data is becoming a huge mechanism for subsidizing TV sale…
How do Doctor's that use TVs like this in meeting rooms get around HIPAA? or other places with PII, etc? With so much stuff being thrown to TVs now, a lot of times they are inheriently monitors, and there are very few people who think taking a screenshot of a monitor is not invasive.
That's a far cry from relaying an audio recording of a surgical conference containing HIPAA-sensitive data.