Why can't I mirror my Samsung S4 to my Smart TV?

A

AC Question

I cannot mirror my samsung s4 to my smart tv

I tried 2 ways - first I just used a cable which connected the s4 to the HDMI connection on the tv and also to my charger. The phone never recognized the tv and my phone never showed charging.
Second I purchased a MHL adapter similar to the Samsung model.
That also connected to the tv HDmI input and my charging cord plugged into this adapter. Same result - the phoned scanned and found no available devices and it also didn.t display charging. It was the same on another smart tv