Bangkok is also the hub of Thailand's broadcast television. All six national terrestrial channels, Channels 3, 5 and 7, Modernine, NBT and Thai PBS, have headquarters and main studios in the capital. With the exception of local news segments broadcast by the NBT, all programming is done in Bangkok and repeated throughout the provinces. However, this centralised model is weakening with the rise of cable television, which has many local providers. There are numerous cable and satellite channels based in Bangkok. TrueVisions is the major subscription television provider in Bangkok and Thailand, and it also carries international programming. Bangkok was home to 40 of Thailand's 311 FM radio stations and 38 of its 212 AM stations in 2002. Broadcast media reform stipulated by the 1997 Constitution has been progressing slowly, although many community radio stations have emerged in the city.