Sky Sports Extra
In March 1999, Sky Sports 4 was launched as Sky Sports Extra coinciding of Sky Digital's launch of October 1998.
On 2002, Sky Sports Extra underwent a major change, thus adding new fonts to it, and changing the color of "Extra" from black to blue, although it kept the 1998-2007 color scheme.
Sky Sports Xtra
In 2004, Sky Sports Extra was renamed "Sky Sports Xtra". Still, it used the 1998-2007 colour scheme.
In 2007, Sky Sports Xtra got a new logo, the colours were switched, and the 'Sports' red rectangle was widened to fit Xtra in a handwritten script next to it.
Sky Sports 4
On 2010, Sky Sports Xtra was finally renamed as Sky Sports 4. It also gained the ability to have an HD simulcast.
Sky Sports Ryder Cup
During the Ryder Cup, from 18 September to 12 October 2014, Sky Sports 4 will temporally be renamed Sky Sports Ryder Cup.