Early in the episode, when Loretta Swit's character goes out on the hotel ledge, a shot from her perspective looking down toward the ground shows that she has bare feet. When McGarrett is trying to coax her in off the ledge later, however, a close-up shot of her feet shows her wearing stockings.
The TV station, KGMB, airs live footage asking people to identify the woman on the ledge. The shot they air is up-close and head-on; a shot which the cameraman would not be able to get from his vantage point.