Randy Hoffner

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.

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.

If you have attended any recent tradeshow featuring displays or paid attention to the display press, you will have seen and heard about 1080p displays.

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.

Although aspect ratio has always been a factor in television, for many decades only one aspect ratio was available: 4:3. With apologies to accomplished punsters, that picture has changed.

Audio-video synchronization has been one of the major casualities of the DTV era. The industry has become well-aware of this problem.

What is the relationship between resolving power, screen resolution and viewing distance from the screen?

Going digital has solved a number of the technical problems we had in the analog television era, but it has generated a few of its own.

Principal shortcomings, we will recall, include narrow viewing angles and slow response times. Let's look at how one shortcoming is being addressed.

Reading the recent World Trade Center remembrances from my colleague on these pages, Peter Prunty, brought to mind my own memories of One World Trade Center – the North Tower.

Throughput delay, commonly referred to as latency, is an inescapable consequence of using digital audio and video technologies.

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