As David Letterman signs off from the "Late Show" for the last time, take a look back at memorable late night hosts through the years.
Steve Allen -- "Tonight Starring Steve Allen" (September 1954-January 1957, NBC)
Many foods that you think have health benefits may hold hidden dangers for your diet.
Each and every state can lay claim to its own famous native sons and daughters, some more than others (we're looking at you California). Here's one famous face born in each U.S. state.