The Defenders - The Mystery of the Vanishing Circle
Approx 3/4 thru the episode aired on 10/19/10, Belushi was taking to his team and had written on a chalk board behind him previously. The name that was written had a circle drawn around it but when he turned and spoke to the others then turned back the circle was gone. Upon rewinding the clip I also noted the name had been written by different person based on the handwriting which was clearly different.
close eye or dvr