You joke, but some smart TVs with cameras and microphone do indeed that if they have certain malware. This applies even more widely for baby monitors and some other "smart tech for home". What was once a wet dream of Soviet leaders is a reality in our capitalist world, just wait untill it will be mandated by the government that you can't cover the camera with tape and rip out the mic. "You will own nothing and will be happy".
The genre never made any sense, but the original joke was quite good.
In Soviet Russia, television watch you!