Not sure how old the program was OP watched but they found one void in 2017 using cosmic rays. I’m guessing the pyramids are way too solid for ultrasound or x-ray to work.
https://www.science.org/content/article/cosmic-rays-reveal-unknown-void-great-pyramid-giza
I’ve been on a jury a couple of times myself. The first time was boring and was a frustrating case. The second time was disturbing but very interesting and definitely a satisfying experience.
I understand that not everyone wants to serve if their employer doesn’t pay them; it can be a burden. Luckily mine does so I always look forward to summons in the hopes I get on a jury now.