This sketch "Cafe Argentine" was written shortly after several Nazis wanted for war crimes were found hiding out in South America, particularly Argentina.
Lucy and Carol and Lucy competing car rental agents at the airport. Carol for Mavis ("We Try Harder"), Lucy for Gertz ("We're Number One").
The Avis motto "We Try Harder" was adopted in 1962 to put a positive spin on their status as the second largest car rental company in the United States while also taking a shot at larger competitor The Hertz Corporation. A passing bus driver (Vikki Dougan) also uses the advertising slogan of Greyhound Bus Lines, "Leave the Driving to Us."
This was the first of Lucille Ball's four appearances on "The Carol Burnett Show." Carol had then already appeared on two episodes of "The Lucy Show" as Carol Bradford. Lucy had also appeared in "Carol + 2" with Zero Mostel.
Like Lucille Ball's sitcoms, "The Carol Burnett Show" was also aired on Monday nights. On October 2, 1967, "The Lucy Show" aired "Lucy, the Starmaker" (S6;E4) guest starring Frankie Avalon.