As a print journalist, you can be frustrated by people who don't call you back, parts of the story you can't get. TV gets you access to everyone because people call you back. It also allows you to satisfy your curiosity. I am a very curious person.
Commitment. This is my favorite word because in some way, people who are committed are always much more interesting and much more reliable, and much more, I would say, deep than people who are not.