Public radio is drawing its largest audience ever, some 28 million listeners nationwide each week. But if it’s a golden era, you wouldn’t know it from the frenetic activity to remake the genre.

In WNYC’s antiquated downtown Manhattan studios, the veteran National Public Radio and NBC journalist John Hockenberry and his co-host, Adaora Udoji, formerly of CNN, are rehearsing to find a comfortable rapport for their new live morning news program, which begins Monday. Flush from a $2 million Knight Foundation grant, this program, “The Takeaway” is designed with it partner, Public Radio International, and collaborators including The New York Times, the BBC World Service and the Boston public station WGBH, to be a stark counterpoint to the taped interviews on NPR’s venerable “Morning Edition.”

In the Chicago area, an 11-month-old FM station, :Vocalo, never mentions that it is affiliated with Chicago Public Radio. There’s no “All Things Considered” or “Car Talk”; instead hosts weave together interviews, commentary, reports and music, culled from user submissions to a companion Web site, vocalo.org [1].

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