TV5 (also known as 5 and formerly known as ABC) is a Philippine free-to-air television network based in Mandaluyong, with its alternate studios located in Novaliches, Quezon City. It is the flagship property of TV5 Network, Inc. with Cignal TV as its main content provider, both owned by MediaQuest Holdings, the multimedia arm of Philippine-based telecommunications company PLDT. TV5 is also formally referred to as "The Kapatid Network", the Filipino term for "sibling", which was introduced in 2010.