Duke of Madness Motors

The project took more than 10 years to complete.^[7] Proctor told the Library of Congress in an interview that the material was gathered from archives in "our basements, garages, sheds" and "entire reel-to-reel recordings" made by fans during the original broadcasts.^[8] Jessen recovered one tape from a shed which had been buried under a mudslide.^[9]

The album was released on Seeland Records, the label run by experimental band Negativland; co-founder Peter Conheim cited Firesign Theatre as a direct influence on Negativland and hailed them as "pioneers of freely improvised radio".^[10]

The group's 1972 compilation album Dear Friends was collected from the same radio sessions gathered in Duke of Madness Motors.^[11]

Dope Humor of the Seventies, a compilation album released by Stand Up! Records in November 2020, was distilled from the Duke of Madness Motors archive. The group considers the album a sequel to Dear Friends.^[12][13][14]

Firesign Theatre Radio Hour Hour

1. "Yes Mistress!" (1/25/1970)
2. "Pants The Bourgeoisie" (2/1/1970)
3. "The El Droog Symposium" (2/8/1970)
4. "I'm Not Saying They Do It, I'm Just Saying You've Seen It" (2/15/1970)
5. "KWKWT-TV" (2/22/1970)
6. "Live At The Basilica Of The Blessed Gaffe" (3/8/1970)
7. "New New Ork" (3/15/1970)
8. "Znachki" (3/15/1970)
9. "Everyone In New York Is A Communist" (3/22/1970)
10. "Easter Sunday Sunday!" (3/29/1970)
11. "Castaneda Your Bread Upon The Waters" (4/5/1970)
12. "We'll Be Heironymous Bosch In Jest A Minute, But Faust..." (4/12/1970)
13. "Zizzing And Dripping With The RAF" (4/19/1970)
14. "One Slave Whip, Leather, 57-½ Inches" (4/26/1970)
15. "We're Having Authorized Possessed Molluscs For Dinner" (5/3/1970)
16. "I Ain't Got No Body And Nobody Cares For My Grave" (5/17/1970)
17. "There's Been A Lot Of Trouble Out Here, You Know" (5/24/1970)
18. "Zen Hijinks Marathon" (5/31/1970)
19. "The Lone Ranger Vs. Your Developing Breasts" (6/7/1970)
20. "My Faith Is My Gas Mask" (6/14/1970)
21. "There's A Franciscan Friar Out There Right Now Who's Dyin'" (6/21/1970)
22. "The Boss Sound 1010 WINS Munich" (6/28/1970)
23. "Only The Blackness Behind Me Is Real" (7/5/1970)
24. "This Is One Avant-Garde Script You Won't Get Out Of" (7/12/1970)

Dear Friends

1. "Don't Open The Door On Reality" (9/9/1970)
2. "Big Brother Is Washing" (9/16/1970)
3. "Louis P. Illuminato's Church of Everything" (9/23/1970)
4. "...I Could Always Shoot Him With The Camera" (10/4/1970)
5. "Somebody Put A Mickey In The Ground Zero" (10/11/1970)
6. "A Funny Thing Happened On The Way To The Inquisition" (10/18/1970)
7. "Power Is Trouble & Trouble's Not Funny" (10/25/1970)
8. "Deputy Dan Will Find Us No Matter Where We Go" (11/1/1970)
9. "Live At The Ash Grove" (11/15/1970)
10. "The Harry Yagoda Show" (11/22/1970)
11. "Was There A Cow On The Moon?" (11/29/1970)
12. "Happy Harry's Confession Booth" (12/6/1970)
13. "All We Have To Fear Is Me" (12/13/1970)
14. "Hello Russia? Merry Christmas!" (12/20/1970)
15. "Hour Of Ecstasy" (12/27/1970)
16. "Dick Nixon Chevrolet" (1/3/1971)
17. "Dr. Memory's Laff-A-While News" (1/10/1971)
18. "All Nite Images" (1/17/1971)
19. "Welcome To Microorganism State Park" (1/24/1971)
20. "Natural Disaster Telethon" (2/3/1971)
21. "An Inch Closer To San Francisco" (2/17/1971)

Let's Eat

1. "Hey, Banana Nose!" (11/11/1971)
2. "The Whisperin' Squash Show" (11/18/1971)
3. "Radio Prison In Peace And War" (12/9/1971)
4. "Xmas In Ratland" (12/16/1971)
5. "The Filipino Cheeseball War" (1/6/1972)
6. "I Hear Noise In Charles Throat" (1/13/1972)
7. "The New Archipelago Show" (1/20/1972)
8. "Pastor Firesign's Pirate Radio Ministry Of The Air" (1/27/1972)
9. "The Harry Cox Show" (2/3/1972)
10. "The Underworld Olympics" (2/10/1972)
11. "Year Of The Rat" (2/17/1972)
12. "The Hilerio Spacepipe Show" (2/24/1972)
13. "Martian Space Party" (3/30/1972)^[4]

• Producer: The Firesign Theatre
• Reissue producer: Taylor Jessen