One of the main actors on CBS’s crime drama "Numb3rs," David Krumholz, has been tapped for the lead in a pilot for a  Fox sitcom from Ron Howard, according to Entertainment Weekly.

There’s been speculation that CBS will cancel "Numb3rs" this spring, which seems more likely now with Krumholz attached to this new project.

The sitcom pilot, from Howard and Brian Grazer’s Imagine Production Company, is about an Internal Revenue Service office.

— Allison J. Waldman