Penny is impressed by the looks she gets while in the comic book store, while Amy thinks that comic books are "lame-o".The name of the store is revealed in The Excelsior Acquisition when the guys are lined up outside waiting to meet Stan Lee, wherein the sign is visible. The store is located on E. Green Street near Pasadena City College and Caltech (according to the store's website).
Stuart also hosts a costume party on New Year's Eve which the gang won for the best Justice League of America team in The Justice League Recombination. He also hosted a costume Halloween party in 2012 in The Holographic Excitation.
Stuart lives in the back of the store though in season 6 he moves in with Raj.
- Several superhero insignias can be seen in the shop including The Flash, Green Lantern, and Batman.
- There is a cardboard cut-out of Ichigo Kurosaki from the anime Bleach in the store.
- There is also a poster of Faith from the 2008 videogame Mirror's Edge.
- Posters and models from the sci-fi videogame franchise Mass Effect can frequently be seen in the background.
- In The Nerdvana Annihilation Leonard mentions that a man called Larry works at the comic book store, this could possibly be the previous owner.
- In The Bakersfield Expedition, the girls visit the Comic Book Store looking into the guys' fascination with comic books.
- There is a QR code on the counter that points to the store's website
- There was a cutout and a man wearing a shirt connected to the former MMORPG, "City of Heroes". He appears in a few episodes. http://www.cohtitan.com/forum/index.php?topic=4908.40
- There is an official website for the Comic Book Centre, shown on the counter in "The Scavenger Vortex".
- The Hofstadter Isotope
- The Creepy Candy Coating Corollary
- The Jiminy Conjecture
- The Guitarist Amplification
- The Wheaton Recurrence
- The Flaming Spittoon Acquisition
- The Justice League Recombination
- The Russian Rocket Reaction
- The Date Night Variable
- The Holographic Excitation
- The Bakersfield Expedition