Back on this day in 1969 Sesame Street makes its debut.

Evan Taylor, Associate Professor of Economics at U of A - Money Monday

ABC News Correspondent Jim Ryan - FAA mandated flight delays

Back on this day in 2013 Twitter went public.

Angela Gonzalez, Phoenix Business Journal Senior Reporter - Phoenix is a top home market

Arizona Sports' Tyler Drake - Cardinals Coffee Talk: Cardinals @ Seahawks

Political Analyst Chuck Todd - Shutdown Continues

Back on this day in 1947 "Meet the Press" made its TV debut

Katie Hobbs, governor of Arizona

Adelita Grijalva, Congressional District 7-elect

Brad Garrett, former FBI agent and ABC crime and terrorism analyst

Jim Ryan, ABC News correspondent

Back on this day in 1955, Marty McFly accidentally traveled back in time

Christel Bell, ABC15 consumer investigator

Greg Stanton, U.S. Representative for Arizona

Jim Ryan, ABC News correspondent

David Key, president of Sedona Chamber of Commerce

Back on this day in 2008 Barack Obama was elected as America's first African American president

Chuck Coughlin, CEO and president of Highground Inc.

Tim Werth, tech editor at Mashable