What is Netflix:
This a online video streaming service. Normally they offer 30 days free trial.
How to connect phone
Yes. You will need an MHL adapter and a standard HDMI cable. The adapter connects to your phone on one end and to an HDMI cable on the other end. Then you just run the Netflix app in your phone and connect the HDMI cable to the TV. The TV mirrors exactly what your phone displays. The display even changes when you rotate your phone from portrait to landscape.
Is there streaming services like Netflix
Yes, there is so many Streaming services like Netflix you may also try out Amazon Prime Video for free 30 days.