Best of YouTube, say the Route1 readers

ROUTE 1 readers offered the following answers to this week's FRIDAY QUESTION:
"What is the coolest thing you have seen on YouTube this week?"
Rick T. -- "Knoxville Weekly." It shows the highlights of the races in Knoxville, Iowa (Spring Cars). I love those types of races. (You can see sprint cars here.)
Clint A. -- Muffins. It speaks for itself. (You can see it here.
Brian C. -- Sam Brown, performing "Horse to the Water," at the tribute Concert for George (Harrison) in 2002. An electrifying performance and, apparently, the only song that appears on the DVD but not on the CD. I have had the CD for years but just this month saw the Concert for George DVD. Why was this left off the CD? (You can see it here.)
Erik H. -- There is so much to choose from at YouTube. Hmm... How about an eight-minute documentary segment detailing how the synthesizer geeks in the BBC's Radiophonic Workshop updated the signature tune for Dr. Who -- quite possibly the GREATEST TV THEME TUNE EVER. (You can see it here.)