Previously, the third hour — known as GMA3 — ran under a separate production team headed by executive producer Catherine McKenzie, who has been let go along with much of the GMA3 staff.

GMA3: What You Need to Know has its new headliners nearly four months since the departure of Amy Robach and T.J. Holmes, who left the show after their off-camera relationship became public knowledge.

ABC’s GMA3: What You Need to Know made headlines after co-anchors Amy Robach and T.J. Holmes' relationship was made public — here's everything to know about the news program Stephanie Wenger ...