Saksi: GMA Headline Balita (1995–99)

GMA Network launched the newscast, originally entitled Saksi: GMA Headline Balita (transl. witness: GMA headline news), as a 15-minute early evening weekday newscast on October 2, 1995. It was then anchored by Mike Enriquez and Karen Davila.^[1]

On July 8, 1996, Mel Tiangco joined Enriquez and Davila.^[2] Economist Solita "Winnie" Monsod also joined the newscast with her own segment, Mareng Winnie. Other segments, such as Huling Hirit reported by Kara David, S na S (Showbiz sa Saksi) with Lyn Ching and Jessica Soho Reports were also introduced and running time was expanded to 30 minutes.^[3]

In 1998, the show was relaunched when Partners Mel and Jay and Tapatan with Jay Sonza host Jay Sonza and Luchi Cruz-Valdes joined Mel Tiangco and they replaced Enriquez and Davila, while was Enriquez appointed as an anchor of GMA Network News with Vicky Morales. Davila, on the other hand became a co-host of Extra-Extra, a magazine program featuring different human-interest and entertainment stories (which also served as pre-programming to Saksi).^[4] New segments such as, Pulso ng Mamamayan transl. pulse of population where the show asks to citizens to speak up and tell them what they think of what's happening in the country today.

Saksi (1999–2004)

On August 16, 1999, Tiangco was appointed as anchor of Frontpage: Ulat ni Mel Tiangco, which replaced GMA Network News on the late-night weeknight slot. She, Sonza and Valdes were replaced by Enriquez and Morales, thus continuing their partnership on Network News. The original subtitle, GMA Headline Balita, was also dropped since then. The studio set also used chroma-key technology, and later on they transferred to the newly built GMA Network Center in 2000.^[5] This was also the beginning of simulcasting the newscast on the network's radio station, Super Radyo DZBB 594 kHz.

On July 15, 2002, Saksi exchanged timeslots with Frontpage: Ulat ni Mel Tiangco. By the same day, the program was reformatted as a late night newscast. The shift to late-night also prompted the start of "Side Trip", a human-interest segment hosted by Howie Severino.^[6]

In the same year, Saksi won the gold medal for Best Newscast in the New York Festival, becoming one of the few news programs outside the United States to receive the said honor.^[7] The award was later recognized by the Philippine Congress by issuing the network a commendation for its work in News and Public Affairs. On March 12, 2004, Enriquez left the newscast to join Frontpage anchor Mel Tiangco as anchors of 24 Oras.^[8]

Saksi: Liga ng Katotohanan (2004–14)

After Enriquez's transfer to the network's new early evening newscast 24 Oras, Arnold Clavio was named anchor of the show joining Morales. It was relaunched as Saksi: Liga ng Katotohanan (transl. league of truth) on March 15, 2004.^[9]

Saksi (since 2011)

The show launched a segment called Saksi Ako (transl. I'm Saksi), where viewers can make their own report there by using cellphone and camera recordings via GMA Network app's Youscoop. In July 2013, it launched its segment Midnight Snack, a food-trip segment hosted by Mikael Daez every Mondays to Thursdays, After a one-week hiatus, On November 5, 2013, it returned under the new title Midnight Express.^[10]

In November 2014, Pia Arcangel joined as an co-anchor, replacing Morales, who was moved to 24 Oras.^[11] In April 2020, the show was suspended due to the enhanced community quarantine in Luzon caused by the COVID-19 pandemic.^[12] The show resumed its programming on June 1, 2020.^[13]