This stuff is confusing nowadays. I took forever to research TV and finally upgraded to the 4K and dang is this picture clear when streaming!! You can get a lot of bang for your buck for $1000, WOW! The only issue is all my old HDMI cables are "standard". The guy at the story tries to sell me $80 HDMI "High Speed Directional" cables at 6-10 feet long. Seemed like a ripoff to me. But my stream from my cable box looks pretty crappy and glitchy. The streaming from the smart TV built in apps is awesome. Can I just grab any old "High Speed" HDMI off Amazon? I need ARC and I'm running everything through a new HDMI receiver for my speakers/sound. Anyone have good cables they use for a good price? I need like 6 of them around 6-10ft each. Oh and it's 120Hz panel...most cables I read about say 4K at 60Hz for some reason.