In depth and practical guide to television production.
The HD HERO2: 2x as Powerful in Every Way. Panasonic ag-af101. 4:2:2 vs 4:2:0 (with examples) - Page 3. Which of course, this thread just validates that people don't really understand what they are getting with 4:2:0 and 4:2:2, because it has nothing to do with the color science (or color depth, etc).
It has to do with the spacial color sampling. Have a look here: Where the picture examples are perfect of showing what happens. Red Camera 4k demo.