I didn't download the video, but I thought I had a rocker noise on the right side. Couldn't figure it out, checked the rockers, they were all good, no bent p-rods, nothing. It turned out to be my EGR making a ton of noise. Might want to check that out. It puzzled the hell out of me, becuase it's right by the valve cover and even a stethoscope was picking it up when listening to the rockers.

 

Ok well....two of the studs decided to back themselves partway out and the retaining nut was tapping against the valve cover. Problem fixed.