All the Smart TV's appeared with sub standard browsers that you could beat with a netbook (which was pretty poor at the time.) Since these are devices without any open source or alternative OSes, once the sales are done, then with each passing year how would a maker pay their programmers to keep them current?

You are seeing the results. Samsung does not write the Netflix and such apps but did use a web kit that was not very good to start with. So as the web sites demand more of the browser these Smart TVs are left farther and farther behind.

My fix was simple. Since I could see this coming I opted for alternatives like Rokus and PC on a stick solutions.