"They're a lie," said Gelbart in a 1992 interview. "You're telling an engineer when to push a button to produce a laugh from people who don't exist. It's just so dishonest. The biggest shows when we were on the air were "All in the Family" and "The Mary Tyler Moore Show" both of which were taped before a live studio audience where laughter made sense," continued Gelbart. "But our show was a film show – supposedly shot in the middle of Korea. So the question I always asked the network was, 'Who are these laughing people? Where did they come from?'" Gelbart persuaded CBS to test the show in private screenings with and without the laugh track. The results showed no measurable difference in the audience's enjoyment. "So you know what they said?" Gelbart said. "'Since there's no difference, let's leave it alone!' The people who defend laugh tracks have no sense of humor." Gelbart summed up the situation by saying, "I always thought it cheapened the show. The network got their way. They were paying for dinner."