Kind of off topic, but I have an older Samsung smart tv. It has an ethernet connection, but it didn't have any option for WiFi. For a few years I had it wired up to ethernet, and after rearranging where my router lived in the house I didn't have a long enough ethernet cable, so I hooked up a USB WiFi dongle. It worked great for a few months until I needed that dongle to connect a Raspberry Pi to WiFi, so I stole it from the TV...and lo and behold the TV still had internet access via WiFi! The only thing that I think could have happened is that the TV had WiFi hardware but was disabled in software, because at the time a WiFi TV was selling at a premium and this was a cheapo one I bought from Wal-Mart. So I guess hooking up the USB dongle somehow unlocked it. It kinda freaked me out that there was hidden WiFi hardware in there.
edit
The tv definitely phones home too, my Pi Hole blocks a few hundred attempts to lookup log-ingestion.samsungacr.com, xpu.samsungelectronics.com and upu.samsungelectronics.com per day.