"HCF":

  "In computer engineering, Halt and Catch Fire, known by the assembly language mnemonic HCF, is an idiom referring to a computer machine code instruction that causes the computer's central processing unit (CPU) to cease meaningful operation, typically requiring a restart of the computer. It originally referred to a fictitious instruction in IBM System/360 computers (introduced in 1964), making a joke about its numerous non-obvious instruction mnemonics." (Source: https://en.wikipedia.org/wiki/Halt_and_Catch_Fire_(computing)

The series is a memorable instance of what any self-respecting geek ought to have watched. It's better than "Silicon Valley", although the latter has pulled one scientific stunt regarding scientific advisory that is unique in film.

What other films/series are "must watch" material for geeks?

- War Games

- Silicon Valley

- The Social Network

- The Intern

- Mr. Robot

- Black Mirror

- Hackers

- 2001: A Space Odyssey

- ...?