[1] In May 2008, Telemundo announced that it would replace its existing morning show Cada Día (which had struggled in the ratings against Univision's dominant ¡Despierta América!)

The program would be produced from WKAQ in Puerto Rico, and be hosted by Alan Tacher, Erika Garza and Rashel Diaz.

as Un Nuevo Dia; Puerto Rican actress Adamari López joined the program as an additional co-host.

[10] In 2015, Un Nuevo Día won the Daytime Emmy Award for Outstanding Morning Program in Spanish.

[14] In August 2020, María Celeste Arrarás and Rashel Díaz were laid off from Telemundo as part of a series of cuts by NBCUniversal, leaving Adamari López and Stephanie Himonidis as the remaining anchors.