Just as Tom Brokaw gets ready to transition into a new job, Bill Gates is preparing to transition out of his day-to-day role with Microsoft, and Brokaw talks with him about it.

Brokaw interviewed Gates today at Microsoft headquarters in Redmond, WA. The interview will air tomorrow on Today, Nightly News, MSNBC, CNBC and msnbc.com. Tomorrow is Gates' last business day at the office in his current job with the company. He will be spending more time on his global heath and education work at the Bill & Melinda Gates Foundation.