Revealing mistake: As Larry walks up to the Stephens' house, his shadow falls across the "house" and "street" behind him, revealing that it is a painted backdrop. (00:14:45)
Plot hole: Darrin tells Samantha that Larry thinks the Stephenses are having a costume party. While Larry earlier had said that to himself when he looked through the Stephens' living room window, he never said it to Darrin. (00:20:45)
Continuity mistake: In Tabitha's room in an early scene, Tabitha for some reason is in her play pen in her bedroom rather than her crib as usual. Later, the crib is back when Darrin is securing her toys in the locked toy chest.
Answer: Telstar was an early communications satellite system. Darrin, in a particularly sexist manner reflective of this era, is saying that telling a secret to a woman means it is guaranteed to be "broadcasted" to multiple people.
raywest ★