I listen to a lot of science podcasts and this is one of my favorite because of Ira Flatow. I used to watch Newton’s Apple and I love Groucho Marx, so I was already predisposed toward him. But I didn’t know how much he “makes” the show until one time I was listening to SciFri and they had a substitute host - I tried to listen but the wooden, waspy, bland delivery just held no appeal. I love Ira bc he actually gets excited, he asks dumb questions I am thinking myself, he seems unpretentious, and he always handles the callers with grace. I like to think I am a lot smarter from listening to this show-at the very least, I have been entertained!