Historical clue formulations

• Sportscaster Bob — 2019-11-04
• Longtime Olympics TV host — 2016-01-31
• Longtime Olympics TV host — 2015-06-28
• Bob of play-by-play — 2014-07-18
• "Football Night in America" host — 2011-02-12
• Bob at the Olympics — 2009-07-16
• Longtime NBC Olympics host — 2008-10-30
• 2000 Olympics host — 2007-10-12
• Sportscaster Bob — 2007-07-17
• Multi-Emmy-winning NBC sportscaster — 2006-10-15