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 The term NBC has been replaced by CBRN (chemical, biological, radiological, nuclear), with the addition of a new threat, radiological, meaning radiological weapon.
NBC
Reportedly, the first NBC Television "network" program was broadcast on January 12, 1940, when a play titled "Meet The Wife" was originated at the W2XBS studios at Rockefeller Center and rebroadcast by W2XB/W2XAF (now WRGB) in Schenectady, which received the New York station directly off-air from a tower atop a mountain and relayed the live signal to the Capital District. About this time, occasional special events were also broadcast in Philadelphia (over W3XE, later called WPTZ, now known as KYW-TV) as well as Schenectady. The most ambitious NBC television "network" program of the pre-war era was the telecast of the Republican National Convention held in Philadelphia in the summer of 1940, which was fed live to the New York City and Schenectady stations. However, despite major promotion by RCA, television sales in New York during 1939 and 1940 were disappointing, primarily due to the high cost of the sets, and the lack of compelling regularly scheduled programming. Most sets were sold to bars, hotels and other public places, where the general public viewed special sports and news events. One special event was Franklin D. Roosevelt's second and final appearance on live television, when his speech at Madison Square Garden on October 28, 1940, was telecast over W2XBS to receivers in the New York City area.
Television's experimental period ended, as the FCC allowed full-fledged commercial television broadcasts to begin on July 1, 1941. NBC station W2XBS in New York City received the first commercial license, adopting the call letters WNBT. The first official, paid television advertisement broadcast by any U.S. station was for watch manufacturer Bulova, which aired that day, just before the start of a Brooklyn Dodgers baseball telecast on WNBT. The ad consisted of test pattern, featuring the newly assigned WNBT call letters, which was modified to resemble a clock – complete with functioning hands – with the Bulova logo (featuring the phrase "Bulova Watch Time") in the lower right-hand quadrant of the test pattern (a photograph of the NBC camera setting up the test pattern-advertisement for that ad can be seen at this page). Among the programs that aired during the first week of WNBT's new, commercial schedule was "The Sunoco News", a simulcast of the Sun Oil-sponsored NBC Radio program anchored by Lowell Thomas; amateur boxing at Jamaica Arena; the Eastern Clay Courts tennis championships; programming from the USO; the spelling bee-type game show "Words on the Wing"; a few feature films; and a one-time-only, test broadcast of the game show "Truth or Consequences", sponsored by Lever Brothers.