Graham and Bobby Rahal

Graham Rahal will join the list of celebrities that have delivered the Top 10 List on "The Late Show with David Letterman" on March 20 on CBS. Check local listings.

Rahal, of course, has joined the Rahal Letterman Lanigan Racing team for the 2013 season that begins this week with the Honda Grand Prix of St. Petersburg. Rahal won the 2008 race on the 1.8-mile, 14-turn temporary street circuit and started from the pole in 2009. His previous appearnace on "Letterman" came after the '08 victory.

Rahal, a noted foodie, also will be a guest on the syndicated "Rachel Ray Show," which will air March 26. Check local listings.

Also on March 20, 2004 IZOD IndyCar Series champion Tony Kanaan and Firestone Indy Lights driver Zach Veach will visit the Science Center of Pinellas for Career Day. They'll introduce youngsters to the diverse career opportunities that science, technology, engineering and math have in motorsports.

NBC Sports Network’s coverage of the 2013 IZOD IndyCar Series season begins with “Ryan Hunter-Reay: An American Champion” at 7 p.m. (ET) March 21. The show recounts the Andretti Autosport driver’s 2012 season and previews the 2013 season through interviews and footage.

NBC Sports Network's broadcasts of the opening race weekend continue with live coverage of qualifications at 2:30 p.m. (ET) March 23, followed by the Firestone Indy Lights race at 11 a.m. (ET) and then the IZOD IndyCar Series race at noon March 24.

The Honda Grand Prix of St. Petersburg will re-air at midnight (ET) March 26.