We bought a Philips smart tv here a year or so ago. Quite ironic it being called `smart` because it has to think about every button press for a few seconds before springing into action.
Have a chromecast , apple tv and roku around the house on various tvs. Each has it strong and weak points, but overall I like the chromecast which is a steal for the price. Amazon fire stick also looks worthwhile. But as far as tv`s go, like others have said, get a standard lcd and forget the smart options.