The 2012–13 network television schedule for the four major Brazilian Portuguese commercial broadcast networks in Brazil covers primetime hours from March 2012 to February 2013.

The schedule is followed by a list per network of returning series, new series or telenovelas (soap operas), and series canceled after the 2011–12 season.

• New series are highlighted in bold.
• All times are in Brasília time. Add one hour for Atlantic islands time, subtract one hour for Amazon time and two hours for Acre time.
• Note: From July 27 to August 12, 2014 all Rede Record primetime programming was pre-empted for coverage of 2012 Summer Olympics.

  Lime indicates the #1 most watched program of the season.^{[1][2][3][4][5][6][7]}

  Yellow indicates the top-10 most watched programs of the season.

  Cyan indicates the top-20 most watched programs of the season.

  Magenta indicates the top-30 most watched programs of the season.

  Orange indicates the top-40 most watched programs of the season.

  Silver indicates the top-50 most watched programs of the season.