The aggravatingly amiable star of "Full House," "America's Funniest Home Videos"
Did You Know?
was scheduled to appear but canceled when he decided to check himself into an intensive outpatient rehabilitation facility. See more
[about Bob hosting "America's Funniest Home Videos"
His entire job consisted of saying "take a look at this." Which is what he used to say to Mary-Kate Olsen in her dressing room.