My column yesterday looked at, among other things, #adfails. For all the personal data collected and algorithmic targeting configured, online ads often misfire.

Of course, online ads are still slightly more targeted than the mass-market blast of television commercials. TV is only recently getting into the behavioral targeting game. So while I frequently see Facebook ads for things I’ve already bought, I typically see TV ads for things I hope not to purchase for several more decades (if ever): adult diapers; reverse mortgages; electric scooters; and pills to lower my cholesterol, raise my libido and even out my hairline.

In fact, for a while now I’ve had a pet theory that only old people still watch live TV. And it turns out I was almost right.

OK, old people aren’t the only ones still left watching live TV, but they do watch way more live than we young whippersnappers do. A new Nielsen report offers figures showing weekly consumption of various media, by age group. Below I’ve charted the numbers for time spent  “on traditional TV” and “watching time-shifted TV.” (The report also has figures for time spent on game consoles, watching video on the internet, etc.).

Source: Nielsen.
Source: Nielsen.

Medicare-eligible Americans watch almost twice as many hours of “traditional TV” as young invincibles do, which perhaps explains all the ads I end up seeing for motorized stair lifts. (I’ve been told though that if I watched more live sporting events and teen awards shows, I’d see more ads for sub-senior demographics though.)

Catherine Rampell is an opinion columnist at The Washington Post.