i once saw mitch hedberg do a 10$ show nearly from a notepad and made it part of the joke, taking notes on audience reaction then noting the reaction to the notes
at the ucb show there was a comedian i was unaware i was familiar with named josh fadem, he did a bit on werner herzog pitching a hidden camera show that i laughed over for three comedians after fadem's set
i wanted to remember the nuance of the bit and scoured the internet but was unable to find anything substantial, i did find this(o) early in development version of the joke but it pales in comparison to the complexity and construction of the one i saw him do live
i really wish someone had a phone on him that night
(o) https://www.rooftopcomedy.com/watch/WernerHerzogsRealityShow