nfl_network_usNFL Live Streaming Free, NFL Live, NFL Online, Watch Live National Football League Matches, National Football League Live, National Football League Online. Watch the NFL Pre-Season on live streaming for free – American Football Season Sunday Football. NFL Live is a National Football League studio show, currently airing Monday through Friday. 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 team with the most NFL championships is the Green Bay Packers with thirteen; the team with the most Super Bowl championships is the Pittsburgh Steelers with six. The current NFL champions are the New England Patriots, who defeated the Seattle Seahawks 28–24 in Super Bowl XLIX.