The picture on the left (if you can't tell by the young and spunky Britney Spears) was taken at the 2001 Super Bowl with a Nikon D1H at 2.7 megapixels and 800 ISO. That was primo technology back then! The picture on the right was taken at this year's Super Bowl with a Nikon D3s at 12MP and 12,800 ISO. Yep, camera ISO sure has improved.
Click the picture to embiggen it so you can see the full effect. The difference is stark: the 2001 picture looks like it came out of my iPhone! More seriously, the 2001 picture has significantly more noise, washed out colours and less depth when compared to the 2012 picture. Heck, the 2012 shot is so good it can make Madonna look human.