In the U.S. series The Office episode entitled Here Comes Treble Stephen Colbert plays the role of "Broccoli Rob", a Cornell alum and a Capella who competes with Andy for the lime light.
However, Colbert's entire portrayal is done via web cam. Why?
Was this an artistic choice, or was it brought on by extenuating circumstances? Was Colbert unable to attend a physical taping of the show due to scheduling conflicts?