Question: how do you screen mirror on a smart tv?
Answer: Download the SmartThings app. If you don't have it on your phone or tablet already, download and install the SmartThings app. ... 
Open Screen Sharing. ... 
Get your phone and TV on the same network. ... 
Add your Samsung TV, and allow sharing. ... 
Select Smart View to share content. ... 
Use your phone as a remote.