Editing PAL (section)

=== PAL-B/G/D/K/I ===
Many countries have turned off analogue transmissions, so the following does not apply anymore, except for using devices which output RF signals, such as [[Digital video recorder|video recorder]]s.

The majority of countries using or having used PAL have television standards with 625 lines and 50&nbsp;fields per second. Differences concern the audio carrier frequency and channel bandwidths. The variants are:
* [[CCIR System B|Standards B]]/[[CCIR System G|G]] are used in most of Western Europe, former Yugoslavia, South Asia, Thailand, Australia, and New Zealand
* [[CCIR System I|Standard I]] in the UK, Ireland, Hong Kong, South Africa, and Macau
* [[CCIR System D|Standards D]]/[[CCIR System K|K]] (along with SECAM usually) in most of Central and Eastern Europe and mainland China.

Systems B and G are similar. System B specifies 7&nbsp;MHz channel bandwidth, while System G specifies 8&nbsp;MHz channel bandwidth. Australia and China used Systems B and D respectively for VHF and UHF channels. Similarly, Systems D and K are similar except for the bands they use: System D is only used on VHF, while System K is only used on UHF. Although System I is used on both bands, it has only been used on UHF in the United Kingdom.