LG TVs and monitors said to surveil users and install bloatware without asking
(www.notebookcheck.net)
You didn't connect your Samsung smart TV, but your neighbor did, and they connect over a second separate Samsung™©® network that you and your neighbor both 'consented' to in the Eula's, where media fingerprints and timestamps are exchanged updated, etc during downtime. Evil mesh networks, basically.
Or Sony™, or rjfyjdokfdrlvdgjg™, or whatever.