I mentioned Massimo Pigliucci defending philosphy below, and now he has an audio/video discussion of the same topic.
Pigliucci mainly defends the value of philosophical thinking, and accuses physicists of being ignorant for thinking that philosophers are all post-modernists. He also says that string theorists are upset with philosophers saying that their untestable ideas are unscientific, and that the theorists would like to re-define science without any interference from philosophers.
He says physicists should respect philosophy because Bohr and Einstein had philosophical debates. Okay, but what philosopher has said anything worthwhile about physics in the last 50 years?
He says that some physicists have conceded value to ethics and moral philosophy, but have their strong objections to philosophy of science. I have tried to read some supposedly important moral philosophy, and I have found it to be nearly 100% worthless.
He misses the point of just how anti-science philosophers have become. Scientists believe that they are searching for truth and philosophers deny it. And not just the postmodernists.