Still not a computer

I read a comment by mjorgers:

If I can download and run arbitrary code on my Mac–even if I have to jump through scary warnings–why should I not be able to do so on my phone? Why would one computing platform be different from the other?

Then I updated the software on my television set:

Of course you are free to do whatever you want on your phone but my telly and my phone are still not your computing platform.