The median age of a TV viewer is now 54. Has advertising basically become a junk science?

https://twitter.com/homersquotes/status/34577913630167040

Amen, Homer. We were all taught to believe that the central idea of advertising was to capture the attention (and later the wallet) of 18 to 49 year-olds. Here's a problem now, though: those people aren't necessarily watching TV anymore. In the past 20 years, the median age of TV watchers went fro…