The two-year Five deal will see live coverage of Monday night football, and Sunday nights from the middle of the season.
For the first time Five, the terrestrial partner for the regular season, will air games from the NFL archive as well as a package of highlights from around the league.
Sky Sports, which has been an NFL broadcaster for 10 years, signed a new two-year deal that will see the satellite station screen two live games every Sunday from 6pm, plus Thursday and Saturday games later in the season.
In total, Sky Sports will screen more than 40 games, plus every playoff game and Super Bowl live.
The NFL has also signed a one-year deal with the North American Sports Network which airs on Sky channel 417. The deal includes an ESPN magazine and highlights show as well as a two-hour preview show every Sunday.
ITV will enter the second year of a three-year deal this autumn and will air the playoffs and live coverage of the Super Bowl XL from Detroit in February next year.
In addition, ITV will screen a weekly highlights show during the playoffs and throughout January 2006.
The NFL season kicks off on September 8.
Alistair Kirkwood, NFL Europe vice-president of strategic planning, said: "The UK is a priority market for the NFL and we continue to see encouraging signs of growth in many areas."
Last year, 2m people watched Super Bowl live on ITV and Sky Sports.
The NFL also confirmed it is in talks to bring a regular season game to the new Wembley stadium, which opens next year.
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