How many HDMI ports do you need for your TV? And what kind?

HDMI ARC and eARC: Audio Return Channel Explained hdmi slot in tv Get a HDMI extension, connect one end to the back of the TV, securing it with black tape so it won't disconnect easily, and stick the other end hdmi cable slot Here's the complete guide on how to use HDMI cable from mobile to TV and use it to cast your phone Connect HDMI cable to TV effectively

hdmi slot Those look somewhat like USB ports if you can see any such thing at the back or back side of the tv ?If not then could you please give me that