On the game show Porky Pig won: 1. The Rocky Mountains, 2. A 17-Jewel half Nelson, 3. The La Brea Tar Pits, 4. The Rock of Gibraltar, 5. 600 gallons of genuine Niagara Falls, 6. $26,000,000.03.
Daffy's radio quiz is supposedly sponsored by the "Eagle Hand Laundry". "Hand laundries", in which large quantities of clothing and linen were manually washed, dried, and ironed, were a common phenomenon in the early to mid 20th century USA.
The "Miss Shush" Porky is asked to identify by the sound of brushing her teeth is actually, as Daffy tells the audience, "Mamie the 600-Pound Gorilla who appears in Obnoxious Pictures' 'Jungle Jitters'". Both the character and film are fictitious; this is not a reference to the Metro-Goldwyn-Mayer cartoon Jungle Jitters (1934) directed by Ub Iwerks nor Warner Brothers' own cartoon Jungle Jitters (1938), directed by Friz Freleng, the latter of which did not feature a gorilla.
At the time of the cartoon's release, there was a real-life business called the Eagle Hand Laundry which was located in Brooklyn.
Among the radio quizzes referenced by the cartoon are Truth Or Consequences (the questions and consequences, referred to in the cartoon as "penalties", the "Mrs. Hush" segment, parodied as "Miss Shush", and the reunion segment), Take It Or Leave It, which changed its title to The $64 Question eight days after the cartoon's premiere (referenced by Daffy Duck's line "You've got 32 teeth, would you like to try for 16?" and the audience member's line "You'll be sorry!", spoken in the original by the audience whenever a contestant tried for the $64 question) and Doctor IQ (Daffy Duck's last line, "Have you got a doctor in the balcony, lady?" parodied the original announcer's line of "I have a lady in the balcony, doctor", with this line or a similar one used to introduce a new contestant). All of these radio quizzes would make the transition to television as The All New Truth or Consequences (1950) (which was first broadcast within a week of the cartoon's release), The $64, 000 Question (1955) and Doctor I.Q. (1953).