I Love Lucy S02 E22 No Children Allowed

"Vitameatavegamin - Spoon Your Way To Health!"

When a cranky tenant (Elizabeth Patterson, in her first appearance as Mrs. Trumble,) threatens to move because of Little Ricky's loud crying, Ethel makes it clear that her friendship with Lucy is more important than a rental agreement. But Ethel doesn't let the Ricardos forget her loyalty.