Big Bang Theory comic-con 2014 "The Big Bang Theory" writers dish out Season 8 spoilers and other fun facts at 2014 SDCC. Photo: Sonja Flemming/CBS

The masterminds behind “The Big Bang Theory” returned to San Diego Comic-Con by popular demand to have fans of the show pick their minds about “TV’s No. 1 comedy,” which returns with Season 8 on Sept. 22.

From an exciting first kiss to a shocking engagement, "The Big Bang Theory” producers and writers left no sedimentary rock unturned during their Comic-Con panel, held this morning. Here’s what we learned about what goes down in the mysterious writer’s room of “Big Bang”:

1. Not all the writers of “Big Bang” are fans of “Star Wars”: 

2.   James Earl Jones and Carrie Fisher had never met until “The Big Bang Theory":

3.   Originally the characters of “Big Bang” were supposed to be computer programmers:

4.   There’s a reason the elevator hasn’t been fixed since the show’s series premiere:

5.   Writers shared a surprising fact about Bernadette & Amy’s roles on “Big Bang”:

6.    Multiple takes of Amy and Sheldon’s kissing scene were shot #Bazinga: 

7.   Sometimes the writers throw in Easter eggs for fans:

8. There’s an actual trailer for Penny’s movie:

9.   Writer’s reveal their beef with Aquaman:

10. When can fans expect a Penny/Leonard wedding or babies?

11. Will we ever find out Penny’s last name?:

Bonus: Here's the highlight reel they showed during the 2014 SDCC panel of "The Big Bang Theory":