The National Football League (NFL) was founded in 1920 as the American Professional Football Association (APFA). It is a professional American football league with 32 clubs divided evenly between the American Football Conference (AFC) and the National Football Conference (NFC).If you want to watch your favorite team on the NFL network this season, you’ll need to activate it. Luckily, the process is simple. Just head to nfl.com/activate and enter activation code. Once you’ve logged in, you’ll be able to select your team and enjoy all the action.