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 The term NBC has been replaced by CBRN (chemical, biological, radiological, nuclear), with the addition of a new threat, radiological, meaning radiological weapon.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 Sunday Night Football
NBC is the current home of the annual Pro Football Hall of Fame Game, which begins the NFL's preseason each August. However, the 2007 game aired on the NFL Network as the league had planned to stage the China Bowl just a few days later (before it was postponed indefinitely), to be televised by NBC as a tie-in to its coverage of the 2008 Summer Olympics in Beijing. Normally, there are two other preseason telecasts on NBC; however, because of the Beijing Olympics, only two were shown in 2008. Two preseason games (the Hall of Fame game and one other match-up, depending on other NBC Sports commitments), and the Thursday night season opener were retained as part of the new contract beginning in 2014.