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Klondike Middle School eighth-grader Mark Sellke will appear on "Live! With Regis & Kelly" at 9 a.m. Tuesday.
Sellke won the 2010 Raytheon MATHCOUNTS National Competition on Friday, making him the top middle-school "Mathlete" in the U.S.
On Tuesday morning, he will compete in a math challenge with TV hosts Regis Philbin and Kelly Ripa on their morning show.
He also will make a number of TV appearances on other channels, but none in Indiana.
When we have more details about Mark, we will update it here.