Analog television, which we used to call just "television" before all this digital stuff landed on our doorsteps, is nearing extinction. In fact, the exact day of its demise has already been announced: 17 February 2009, after which all the old-style transmitters will be shut down and the spectrum space reallocated. (In the digital TV world, only channels 7 to 51 will still be in use; low-band VHF channels 2 through 6 and the upper section of the UHF band will be designated for non-TV use.) I have two television sets, one of which is capable of handling the digital signals on its own. What happens to the other one depends on what the cable company decides to do.
What's unusual about this, of course, is that official death date. Elsewhere, a lot of technologies and business models hang on despite being pretty much dead in the water. Just to name a few:
Long-distance telephone service.
Detroit's plethora of dealers.
The average Chevrolet dealer sells 583 cars a year. Ford dealers sell 631 vehicles a year on average, while Dodge dealers sell 375 on average, according to J.D. Power and Associates Power Information Network. All three are sharply down from previous years. By contrast, the average Toyota dealer sold 1,685 vehicles, while Honda dealers closed 1,289 sales on average last year.