A large number of young people are also taking advantage of working holiday visas made available by the United Kingdom and other Commonwealth states. White Africans, including the British diaspora, generally enjoy an outdoor lifestyle and sports. The "braai" is a popular way to gather with friends and family. Other popular pastimes include visiting game reserves, hiking, camping and recreational angling. There is a particular appreciation of country life and farming. Farmers themselves generally prefer holiday houses at the coast. In other ways, the culture of the British diaspora derives from their British ancestry. Afternoon tea – in fact, tea at any time of day – is still widespread as are pastimes such as gardening and reading. Families who live in the country are usually familiar with pastimes such as horseriding and shooting. White South African culture was encapsulated in the 1970s Chevrolet radio jingle "Braaivleis, rugby, sunny skies and Chevrolet" based on the United States version "Baseball, hot dogs, apple pie and Chevrolet". Although nationwide television in South Africa was introduced in 1976, many older South Africans of British descent had little exposure to British television and humour as a result of an Equity union ban on British television programme sales to South Africa during apartheid. Many white Africans speak a unique dialect of English, developed by interaction with other local languages. South African English is influenced by Afrikaans and the Bantu languages. The considerable Afrikaans influence can be seen from words such as "braai", "trek", "lekker" and "ja" in common usage. Some Zulu and Xhosa words, such as "shongololo", "muti", "ubuntu" and "fundi" (meaning an "expert"), are also commonly used. Although South African slang is used by many younger South Africans, it would be unusual to hear it used among older people. The common greeting "howzit!" comes from the Afrikaans "hoezit!" (or "how is it?"); it can be likened to the US "howdy", the Australian "g'day", the Irish "howya?" or the recent British "all right?". Rhodes University in Grahamstown houses the Dictionary Unit for South African English. The fourth edition of "A Dictionary of South African English" was published in 1991, and the second edition of the "Oxford South African Concise Dictionary" was published in 2010. The English Academy of Southern Africa, founded in 1961, is dedicated to promoting the effective use of English as a dynamic language in Southern Africa.