"station" and "channel" are used interchangeably as programming lineups are mostly centrally planned from the networks' main offices, and since provincial/regional stations usually just relay the broadcast from their parent network's flagship station (usually based in the Mega Manila area). As such, networks made up of VHF stations are sometimes informally referred to by their over-the-air channel number in the Mega Manila area (for example, Channel 2 or Dos for ABS-CBN, Channel 13 or Trese for IBC, Channel 5 or Singko for TV5, Channel 9 or Nueve for Radio Philippines Network and Channel 7 or Siyete for GMA Network), while some incorporate their channel numbers in the network's name (for example, TV5, Studio 23 and Net 25, which respectively broadcast on VHF channel 5, and UHF channels 23 and 25). Unlike the United States, where networks receive programmes produced by various production companies, the two largest networks in the Philippines produce all of their prime time programmes. Other networks adopt block-time programming, which uses programming arrangements similar to the relationship between a U.S. network and station. See also Broadcast network Cable television in the United States Concentration of media ownership List of television networks by country Parent company Skypath Television system References Network