"The Insider" also broadcast video Tuesday of Maria Shriver praising Mildred Baena at a 2001 celebration for one of Baena's relatives.
Shriver said she was proud of Baena for being a single, hard-working mother. Schwarzenegger can be heard echoing her praise, saying the housekeeper did "an incredible job."
Mildred Baena has been identified as the mother of Schwarzenegger's child by The New York Times and other media. The Associated Press has not independently verified she is the mother.