I only now noticed that there are pages from the Fallout 1 manual (Vault Dweller's Survival Guide) on the Vault 33 bulletin board in the show, including an ad for the GECK and the Mushroom Cloud recipe with a Vault Boy version of Tim Cain.
In terms of references for the Fallout Show it seemed to have the least from Fallout 1 and 2 (2 more so) so it makes me happy to see this and the Water Chip as well as the Colt 10MM Pistol and the Well and obelisk from Shady Sands. Plus a nod to Tim Cain is always appreciated.