Businesses change just like people do — in little ways that are barely noticeable when you see or interact with them frequently but that add up to something substantial over time.
Take the television stations that most of us watch every day in the Twin Cities.
Day in and day out, year in and year out, they don't seem to change much. Their broadcast day looks like it has since the 1960s: morning news shows, daytime talk shows, evening news shows, prime time network shows, late news.
But the business of local TV broadcasting has been utterly transformed. First with the arrival of digital broadcasting in the late 1990s, then high-definition pictures immediately after that and then, over the past decade, by new competition from social media and streaming services.
The number of things we can watch — and the number of places where businesses can advertise — has exploded. And yet, Minnesota's big TV stations WCCO, KSTP, KMSP and KARE are doing pretty great.
Now, OK, I don't have details on their finances. Only one station is locally owned, KSTP by Hubbard Broadcasting, which is a private company. WCCO is owned by CBS, KMSP by Fox and KARE by Tegna, which is in the midst of a sale and restructuring.
No TV station is the cash cow it once was. They all face a revenue squeeze from the fact that advertisers, on a unit basis, pay less for the digital audience.
One effect of the digital transformation at the stations is that ratings matter less and less. February is one of the three months of the year (along with November and May) known as a sweeps month, when the TV industry's long-dominant researcher Nielsen takes more extensive surveys of viewers.