Connect your laptop to multiple displays / TVs using HDMI Splitter

This tutorial is for professional speakers, lecturers,teachers, people demonstrating stuff on their laptop and extending the displays to multiple screens without the secondary screens displaying the laptop desktop but only what is dragged to the secondary screen etc
using a HDMI splitter with a power supply from a usb output i have connected 2 tvs up to my laptop and then gone in to control panel and clicked on screen resolution then clicked on extend displays