Testing Cheap HDMI Cable Testers

Hi, this video shows me testing 2 of the cheap HDMI testers currently available on the market. The reason for the video is because I was given these to test from a friend who was confused why the same cable tested OK on one tester and faulty on another one. I try and explain in the video why this is and also how the tester can have varied results depending on the HDMI cable used. A cheap HDMI cable tester like the yellow one in the video is still definitely a useful tool, but you need to understand the HDMI pins and results given to verify whether or not the cable is faulty and then you can pinpoint the faulty pin(s).
Many thanks, Vince.