The ITV Sport Channel can trace its foundations back to 1999 when the then named ONdigital service acquired exclusive rights to screen every match from the UEFA Champions League, to supplement ITV's existing coverage of the competition. Two channels to show the matches were set up, entitled Champions on 98 and Champions on 99, reflecting the channel numbers these were broadcast on. Prior to the 2000-01 season, these channels were re-branded respectively as ONsport 1 and ONsport 2, after ONdigital had purchased rights to the ATP Masters Series tennis. Whilst ONsport 1 broadcast 24 hours a day, ONsport 2 timeshared with Carlton Cinema.