None of the assertions you made are backed by this 'research' which as far as I can see only shows that the TV is capable of detecting dog barks and baby cries.
You're just presuming that because the TV is capable of sensing these things (which Samsung advertises - links at end) this data is being collected and sent to Samsung - and then sold on.
So, some questions:
Is information about every time your baby cries or dog barks even valuable enough that this is plausible?
Is there any evidence that this is actually being sent over a network - for purposes other than the features they advertise?
Is there evidence that these are even being monitored if the dog bark or baby cry feature is not turned on?
Shouldn't the burden of showing things like this be on the people making the sensational accusations?
I could come up with more, but I think that these are enough. I'd love (well, hate, because I don't want it to be true) to see some actual proof of any of this.
https://www.samsung.com/us/smartthings/experience-smartthing... https://www.samsung.com/ie/smartthings/care-for-your-pet/