1973–1990[]
Logo from its 1973 launch and throughout the late 1970s.
1990–1994[]
1994–1999[]
1999–2003[]
2003–2007[]
2007–2012[]
2012–2013[]
2013–2020[]
Logo From 2013 to 2015
Logo From 2015 to 2020
2020–present[]
Logo from its 1973 launch and throughout the late 1970s.
Logo From 2013 to 2015
Logo From 2015 to 2020