Matanglawin (Baybayin: , ) is a weekly science-environmental educational show hosted by Kim Atienza, popularly known as Kuya Kim. Matanglawin tackling on various subjects. It was aired on ABS-CBN every Sunday mornings at 9:45 am, with replays on Wednesday mornings and daily on Knowledge Channel, Tuesdays at 2:00 pm and Wednesdays at 1:00 am on DZMM TeleRadyo and Wednesday at 7:00 am on Jeepney TV. The show premiered on March 24, 2008, as a late-night program before it was moved to its current time schedule.