From "Samantha Loses Her Voice": this brief little moment between Darrin and Uncle Arthur:
Darrin: Strange as this may seem, you're the best friend I have in Sam's family. Even with all your practical jokes, I know that you really love us, and you mean well, and—
Uncle Arthur: Alright, let's not get sticky. You know, Sammy? Even though he is a party pooper... I like 'im.