In common with most of Western Europe, South Africa used the PAL system for colour television, being only the second terrestrial television service in sub-Saharan Africa to launch with a colour-only service, Zanzibar in Tanzania having introduced the first such service in 1973. (Tanzania itself did not establish a television service until the early 1990s, similarly concerned about the expense and perceived threat to cultural norms.) The Government, advised by SABC technicians, took the view that colour television would have to be available so as to avoid a costly migration from black-and-white broadcasting technology.