some ASL borrowings found in modern Auslan. Auslan, BSL and NZSL have 82% of signs identical (using concepts from a Swadesh list). When considering similar or related signs as well as identical, they are 98% cognate. Further information will be available after completion of the BSL corpus, allows for comparison with the Auslan corpus, and the New Zealand Sign Language project. There continues to be language contact between BSL, Auslan and NZSL through migration (deaf people and interpreters), the media (television programmes such as See Hear, Switch, Rush and SignPost are often recorded and shared informally in all three countries) and conferences (the World Federation of the Deaf Conference – WFD – in Brisbane 1999 saw many deaf British people travelling to Australia). Makaton, a communication system for people with cognitive impairments or other communication difficulties, was originally developed with signs borrowed from British Sign Language. The sign language used in Sri Lanka is also closely related to BSL despite the oral language not being English, demonstrating variation in distance between sign languages and spoken ones. Usage BSL has many regional dialects. Certain signs used in Scotland, for example, may not be understood immediately, or not understood at all, by those in Southern England, or vice versa. Some signs are even more local, occurring only in certain towns or cities (such as the Manchester system of number signs). Likewise, some may go in or out of fashion, or evolve over time, just as terms in oral languages do. Families may have signs unique to them to accommodate for certain situations or to describe an object that may otherwise require fingerspelling. Many British television channels broadcast programmes with in-vision signing, using BSL, as well as specially made programmes aimed mainly at deaf people such as the BBC's See Hear and Channel 4's VEE-TV. BBC News broadcasts in-vision signing at 07:00-07:45, 08:00-08:20 and 13:00-13:45 GMT/BST each weekday. BBC Two also broadcasts in-vision signed repeats of the channel's primetime programmes between 00:00 and 02:00 each weekday. All BBC channels (excluding BBC One, BBC Alba and BBC Parliament) provide in-vision signing for some of their programmes. In 2020, 5.5% of Channel 4's programming was signed, including popular shows such as Hollyoaks and Gogglebox. BSL is used in some educational establishments, but is not always the policy for deaf children in some local authority areas. The Let's Sign BSL and fingerspelling graphics are being developed