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 The term NBC has been replaced by CBRN (chemical, biological, radiological, nuclear), with the addition of a new threat, radiological, meaning radiological weapon.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
"Meet the Press" was the first regular series on a major television network to produce a high-definition broadcast on February 2, 1997, which aired in the format over WHD-TV in Washington, D.C., an experimental television station owned by a consortium of industry groups and stations which launched to allow testing of HD broadcasts and operated until 2002 (the program itself continued to be transmitted in 480i standard definition over the NBC network until May 2, 2010, when it became the last NBC News program to convert to HD). NBC officially began its conversion to high definition with the launch of its simulcast feed, NBC HD, on April 26, 1999, when "The Tonight Show" became the first HD program to air on the NBC network as well as the first regularly scheduled American network program to be produced and transmitted in high definition. The network gradually converted much of its existing programming from standard-definition to high definition beginning with the 2002–03 season, with select shows among that season's slate of freshmen scripted series being broadcast in HD from their debuts.