TODAY 3rd Hour: 100 days to Paris Olympics. 3X3 men’s basketball team live on TODAY. By the numbers: Countdown to Paris. New life for old school signs.

With the countdown to the Paris Olympics just 100 days away, NBC’s Keir Simmons gets a behind-the-scenes look at how the city is prepping for the events. Also, the men’s 3x3 USA basketball team live on the plaza. Plus, NBC News Business and Data Correspondent Brian Cheung breaks down the Paris Olympics by the numbers. And, an inside look at a company that’s taking old school technology and putting a new spin on it.