Casting a computer screen to an HDMI-enabled TV is also a simple procedure; all you need is a working HDMI cable and an HDMI-enabled TV. In this technique to how to cast pc to tv, HDMI to USB converters can also be employed - 

Connect one end of the HDMI cable to the TV port and the other end to the computer.

To change the HDMI source on your TV, use the TV remote. 

Select the appropriate HDMI source on your TV (the port to which you connected your PC).