The Old Firm match between Rangers and Celtic is broadcast live on Sky Sports channels in the United Kingdom. Specifically, recent and upcoming fixtures have been shown on Sky Sports Main Event and Sky Sports Football, with coverage typically starting about an hour before kickoff

. For example, the Scottish Premiership Old Firm fixture on May 4, 2025, was broadcast live on Sky Sports Football starting at 11am, with highlights shown later on BBC Scotland

. The first Old Firm game of the 2024/25 season was also shown live on Sky Sports on September 1, 2024

. In summary:

• UK viewers can watch Old Firm matches live on Sky Sports Main Event and Sky Sports Football.
• Coverage usually begins about an hour before kickoff.
• Highlights are often shown on BBC Scotland later the same day

In the USA, the Scottish Premiership rights are held by CBS, so Old Firm matches would be available through CBS platforms, though specific channel details for the Old Firm are not provided in the search results