The day of the analog device is waning. All-digital video components have on the market for several years, and nearly all newly manufactured electronics is digital. Most of us, however, don’t have the time, money or inclination to always buy the latest and newest equipment. An HDMI switcher, which means High Definition Multimedia Interface switcher, can help bridge the gap between the older digital sets, and the growing number of new electronic devices using these connections.

Many HDTV sets were manufactured with a limited number of high-def inputs, which limits the number of devices that can be plugged in. Realistically, equipment manufactured two years ago probably works very well, and probably doesn’t need to be replaced. A lot of older electronics, however, were designed before the home theater concept became so popular. When exciting new devices get released we often are convinced to buy them and add them to our systems, compounding the digital component population crisis.

A better solution is to add a switcher. But, how does a non-technical person know for sure a new switch will help? The answer, of course, is simple. Add up all the various pieces of equipment you want to play through the HDTV. Then count the number of HDMI ports on the back and sides of the set. They are easy to see, and labeled on most sets. If you have more electronics to plug in than places to plug them, then you need one.

The wise consumer plans ahead. Before buying the first switcher in the store, take a hard look at what you already have in terms of electronics, and especially at what you may add in the future. The old game player might still do the job, but if you want to add another one, or simply replace it, remember that the newer models will connect through an HDMI port. The same is true for your old DVD player. A new Blu-ray player, for example, means yet another digital interface.

It is important to buy a switch with enough ports to satisfy everyone’s needs. A good rule of thumb is to choose one that has at least two more inputs than you estimate needing. If you have kids, you know that babies have a habit of growing into children who insist on the latest gaming devices. Rather than tediously plugging and unplugging a device every time it is used, plan for expansion. Adding inputs costs less than a new wide-screen.

At the store, make sure the equipment you are considering is compatible with your present signal. High definition uses a 1080p video signal in combination with high definition audio. Make sure the new component matches those specifications. Your standard might be HDMI 1.3, for example, and you want a switch that equals that capability.

New HDMI switcher models come with remote controls, and lights on the front indicate when a particular unit is in use. This makes troubleshooting a lot easier. Remember that they can sometimes run into compatibility problems, and may work well with some, but not all, of your components. Save the receipt, because you may want to exchange it for one more widely compatible. The new cost of these devices runs approximately $150-$200, but will add years of usefulness to your current HDTV or home theater.

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