I posted this elsewhere, but anyone on this thread might be interested. I have no idea yet whether it contains info about the 25th anniversary edition CD.
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In the States there's a one-hour, primarily "classic rock" interview program called In The Studio. The episode for the week of May 2, 2011 is called "In The Studio With Peter Gabriel: So 25th Anniversary". I've just seen that it's airing and, as it happens, it will air on most US stations that broadcast it today (Sunday, May

, though there are a few other air dates. Here is the page about this episode:
http://www.inthestudio.net/this-week-in-the-studio/peter-gabriel
For those of you who might catch this soon enough and want to hear the program right away, this page indicates the air times and stations (and you might use any number of websites or apps to access those stations):
http://www.inthestudio.net/radio-stations
Furthermore, you can listen to programs on their main webpage, but it is not yet posted, though I assume it will be in the days ahead (www.inthestudio.net). You'll also see a link on that page to purchase their programs.
Having not yet heard the episode, I have no concept of whether this includes a recent interview with Peter or whether it is compiled from previous sources, though the description seems to indicate that it's new.
Doug