Randy Hoffner

"How did 48 kHz emerge as the professional digital audio sample rate?" As we will see, television had a great influence on this number.

As we celebrate TV Technology's 20th anniversary, it seems the perfect time to take a look back over our collective shoulders and see just how far television technology has come in the past 20 years.

One thing that television and the movies have in common is that both portray motion by capturing and displaying a series of still pictures, albeit in very different ways.

Previously, we have taken a look at how cesium clocks, the most-accurate time and frequency references available to us, work.

One of the opportunities created by the digitalization of television is the ability of digital media and transports to carry metadata in addition to video and audio.