National Football League

The National Football League (NFL) is a professional American football league consisting of 32 teams, divided equally between the National Football Conference (NFC) and the American Football Conference (AFC). The NFL is one of the four major professional sports leagues in North America, and the highest professional level of American football in the world. The NFL's 17-week regular season runs from the week after Labor Day to the week after Christmas, with each team playing sixteen games and having one bye week. Following the conclusion of the regular season, six teams from each conference (four division winners and two wild card teams) advance to the playoffs, a single-elimination tournament culminating in the Super Bowl, played between the champions of the NFC and AFC.

The NFL was formed in 1920 as the American Professional Football Association (APFA) before renaming itself the National Football League for the 1923 season. The NFL agreed to merge with the American Football League (AFL) in 1966, and the first Super Bowl was held at the end of that season; the merger was completed in 1970. Today, the NFL has the highest average attendance (67,591) of any professional sports league in the world and is the most popular sports league in the United States. The Super Bowl is among the biggest club sporting events in the world and individual Super Bowl games account for many of the most watched television programs in American history, all occupying the Nielsen's Top 5 tally of the all-time most watched U.S. television broadcasts by 2015. The NFL's executive officer is the commissioner, who has broad authority in governing the league.

NFC Championship Game

The National Football Conference (NFC) Championship Game (also unofficially referred to as the NFC Title Game) is one of the two semi-final playoff games of the National Football League (NFL), the largest professional American football league in the United States. The game is played on the penultimate Sunday in January and determines the champion of the National Football Conference. The winner then advances to face the winner of the American Football Conference (AFC) Championship Game in the Super Bowl.

The game was established as part of the 1970 merger between the NFL and the American Football League (AFL), with the merged league realigning into two conferences. Since 1984, each winner of the NFC Championship Game has also received the George Halas Trophy, named after the founder and longtime owner of the NFL's Chicago Bears.

History

The first NFC Championship Game was played following the 1970 regular season after the merger between the NFL and the American Football League. The game is considered the successor to the original NFL Championship, and its game results are listed with that of its predecessor in the annual NFL Record and Fact Book. Since the pre-merger NFL consisted of six more teams than the AFL, a realignment was done as part of the merger to create two conferences with an equal number of teams: The NFL's Baltimore Colts, the Cleveland Browns, and the Pittsburgh Steelers joined the ten former AFL teams to form the AFC; while the remaining 13 pre-merger NFL clubs formed the NFC.

AFC Championship Game

The American Football Conference (AFC) Championship Game (also unofficially referred to as the AFC Title Game) is one of the two semi-final playoff games of the National Football League (NFL), the largest professional American football league in the United States. The game is played on the penultimate Sunday in January and determines the champion of the American Football Conference. The winner then advances to face the winner of the National Football Conference (NFC) Championship Game in the Super Bowl.

The game was established as part of the 1970 merger between the NFL and the American Football League (AFL), with the merged league realigning into two conferences. Since 1984, each winner of the AFC Championship Game has also received the Lamar Hunt Trophy, named after the founder of the AFL and longtime leader of the Kansas City Chiefs.

History

The first AFC Championship Game was played following the 1970 regular season after the merger between the NFL and the American Football League. The game is considered the successor to the former AFL Championship, and its game results are listed with that of its predecessor in the annual NFL Record and Fact Book. Since the pre-merger NFL consisted of six more teams than the AFL, a realignment was done as part of the merger to create two conferences with an equal number of teams: The NFL's Baltimore Colts, the Cleveland Browns, and the Pittsburgh Steelers joined the ten former AFL teams to form the AFC; while the remaining 13 pre-merger NFL clubs formed the NFC.

Universal quantification

In predicate logic, a universal quantification is a type of quantifier, a logical constant which is interpreted as "given any" or "for all". It expresses that a propositional function can be satisfied by every member of a domain of discourse. In other words, it is the predication of a property or relation to every member of the domain. It asserts that a predicate within the scope of a universal quantifier is true of every value of a predicate variable.

It is usually denoted by the turned A (∀) logical operator symbol, which, when used together with a predicate variable, is called a universal quantifier ("∀x", "∀(x)", or sometimes by "(x)" alone). Universal quantification is distinct from existential quantification ("there exists"), which asserts that the property or relation holds only for at least one member of the domain.

Quantification in general is covered in the article on quantification (logic). Symbols are encoded U+2200 ∀ FOR ALL (HTML ∀ · ∀ · as a mathematical symbol).

NFL Audio Pass

NFL Audio Pass (formerly NFL Field Pass) was a subscription Internet radio out-of-market sports package provided by the National Football League that provided live and archived audio broadcasts of NFL games throughout the regular NFL season and playoffs, priced either per month or per season.

Background

Prior to 2002, NFL.com offered free broadcasts of its NFL games by special agreement with approximately 20 of its member teams. However, about the same time as the first Internet radio bust, the NFL decided to join the RealOne SuperPass system, a subscription multimedia service that provided various channels from major broadcast providers for a fee (hence the word "Pass" in the name). RealNetworks no longer manages NFL Audio Pass.

Description

NFL Audio Pass provided audio feeds from the flagship English-language radio stations of all 32 NFL teams, broadcasting every preseason, regular season, and postseason game. To direct listeners to the service, the NFL had banned local affiliates from streaming NFL games on the Internet, although several stations still broadcast the games anyway and enforcement of this ban is inconsistent.