18: Percentage of households that watch “American Idol,” today’s top-rated TV show

72: Percentage that watched “I Love Lucy” in 1953, that year’s top-rated show

23 hours, 15 minutes: Average time Americans tuned to local radio stations in 1993

19 hours, 15 minutes: Average time Americans tuned to local stations in 2005

52: Percentage of Americans who read daily newspapers today

81: Percentage who read daily papers 40 years ago

Source: Wired magazine