As late as 2006, CBS aired only three of its NFL games in high-definition each week, the same number of games it had aired for the past few seasons. The other networks with rights to broadcast NFL games, NBC, NFL Network and ESPN, broadcast all of their games in high definition, and Fox broadcasts up to six in HD. Because of this, some fans accused CBS of being ""cheap."" Beginning with the 2007 season, CBS began airing 5 of Sunday's games in high definition television on doubleheader weeks, and six on singleheader weeks.