My TV is also 1080p and 120hz and I did notice a huge difference when using a better cable. I know people are saying (someone even bet) that you will not see the difference but in my case it was like night and day. I actually used the cheap one for like 5 months and a friend was over watching a DVD and thought my TV was 720p. He was the one who said the cable was probably the problem and it was. Best Buy probably sold me an overpriced cable (monster) but I am happy and besides the packaging was also nice
