Stephanie wants to get a new TV to replace their 7 year old HDTV. Leo says that Vizio makes great TVs, as does Samsung, TCL and HiSense. It depends on what is most important to her. Most of them are smart TVs. She'll have to use an Apple TV to stream from her iPhone, though.
Leo says that LG is the best Smart TV. Samsung's smart TV software isn't very good. Stephanie should also get a Roku. Then it doesn't matter what smart tv you have. Also, moving forward, you want your TV to be UHD Premium standard for the best color and dynamic range.