Howard Felsher made a grievous error which screwed a contestant on P+. The answer given by the contestant was not the one I had researched and not the one in the show's "script" and not the one on the on-set graphic. Howard was in a hurry to finish the puzzle and go to commercial and made a very bad call.
Ironically, the puzzle was "cable cars" and the contestant guessed "trolley cars". They knew I went to college in San Francisco and I was confident of the answer, but they never consulted me about it. A few weeks after the taping a letter arrived from the aggrieved contestant stating that cable cars and trolley cars are not the same thing. She was right, but I don't think big machers Howard and Bobby ever did anything about it. They never brought that contestant back. I kept my mouth shut the entire time. If you knew Howard and Bobby you'd understand why I didn't want to take them to task. So Howard, why are you paying me to research the puzzles if you're not going to stick to my research? I could have challenged Howard during that commercial but if you knew Howard like I knew Howard ... something about "opening a can of worms".
If anyone has the clues to the "cable car" puzzle, please share and I will look them over again.
All that said, here is the exact language from the P+ bible:
8. Best Answer
Suppose there is a puzzle with the passwords: President, Peanuts, Billy, Teeth, Georgia. The answer obviously, is Jimmy Carter. It is conceivable that somebody may indeed exist who is President of a Georgia Peanut butter factory, and has a dog named Billy who has sharp Teeth. Although the passwords may also happen to describe this other person, Jimmy Carter is the "best answer" to these clues and will be considered the only correct answer.
A cable car moves by means of a moving cable in a slot embedded in the pavement between the two rails. No electrical power is involved.
San Francisco also has many trolley car lines known by the locals simply as streetcars. A single spring-loaded pole extends up from the roof of the streetcar and engages an electrified overhead wire. The streetcar rails ground the vehicle and complete the electrical circuit. The overhead pole is known as a "trolley".
https://www.streetcar.org/wheels-motion/difference/San Francisco is a compact city. In the 1970's for $11 per month you could buy a "Fast Pass" and get around all over the city on San Francisco's excellent (at the time) municipal transit system.