I mean, just turn off the internet on your TV. Most TVs have terrible built-in software anyway. My TV isn't connected to the internet, so it can't track what I'm watching.
I forgot to mention that my Blu-Ray player also has an Ethernet port and a bunch of "apps" available, and probably has the ability to report back on Blu-Rays viewed, but I don't use it for that reason (and I have better devices for apps, such as Roku.)