I have been telling people for a while that paying for expensive HDMI cables is pointless. I explain to them that digital connections either work or they don’t, and those 0’s and 1’s wont look any better on a more expensive cable. A digital signal is unlike an analog signal in that it is “all or nothing”- either you see a great image on the screen or you see nothing. But for some reason, people have trouble believing that a $7.99 HDMI Cable will work the same as a $200+ HDMI cable.
Anyway, awhile back I was browsing YouTube and came across this video. Hopefully it will help those out that need more convincing: