NBC suit
An NBC (nuclear, biological, chemical) suit, also called a chemsuit or chem suit or chemical suit is a type of military personal protective equipment. NBC suits are designed to provide protection against direct contact with and contamination by radioactive, biological or chemical substances, and provides protection from contamination with radioactive materials and some types of radiation, depending on the design. It is generally designed to be worn for extended periods to allow the wearer to fight (or generally function) while under threat of or under actual nuclear, biological, or chemical attack. The civilian equivalent is the Hazmat suit. The term NBC has been replaced by CBRN (chemical, biological, radiological, nuclear), with the addition of a new threat, radiological, meaning radiological weapon.
WNBC
What is now WNBC traces its history to experimental station W2XBS, founded by the Radio Corporation of America (a co-founder of the National Broadcasting Company), in 1928, just two years after NBC was founded as the first nationwide radio network. Originally a test bed for the experimental RCA Photophone theater television system, W2XBS used the low-definition mechanical television scanning system, and later was used mostly for reception and interference tests. The call letters W2XBS meant W2XB-south, with W2XB being the call letters of the first experimental station, started a few months earlier at General Electric's main factory in Schenectady, New York, which evolved into today's WRGB. GE was the parent company of both RCA and NBC, and technical research was done at the Schenectady plant.