Last year, at SD Best Practices, I was asked to do a video interview on unit testing and legacy code. I was mentally tired at the time and Ted Neward (who was interviewing) had been interviewing people all day, so shuddered to ever see it released.
Turns out, it's surfaced. I wish I'd elaborated on a few points, but I think it turned out okay.
The interview is here and there are a bunch of other interviews in the series here.. interviews with Bjarne Stroustrup, Scott Meyers, Joshua Bloch and many others.