Of all the market changes and losses that Wall Street has witnessed during the United States' decade of errors and descent, perhaps no loss has been as costly for investors, or as lamented, than the passing of Louis Rukeyser.

For those younger investors/readers who may not have heard of him, Rukeyser, who passed away two years ago, was the host of the Public Broadcasting System's "Wall Street Week with Louis Rukeyser."

At its core, the show, which ran with Rukeyser as host from 1970 to 2005 and was broadcast on Friday nights after the market closed, was the first weekly television series to summarize the week's often-dizzying financial and economic news in plain-spoken terms that the typical investor could understand. Simply, Louis Rukeyser defined broadcast financial news coverage and analysis, and was the face of Wall Street for a generation.

And the key to the show's success and usefulness, along with a no-nonsense format, was Rukeyser. A journalist by training, Rukeyser combined expert-level knowledge of the stock market and economics with the temperament and values of a family doctor, to create a calming, trustworthy source that viewers tuned in to religiously. The show became one of the most popular programs on PBS, at one point airing on more than 300 stations and attracting over 4.1 million viewing households.