His career has been primarily focused on:
* Golf commentary: Gannon is known for his work on the Golf Channel, where he has been a commentator for over 20 years. He's covered major tournaments like the Masters, US Open, and PGA Championship.
* Host of the Golf Channel's "Live From the Ryder Cup": Gannon has also hosted the network's coverage of the Ryder Cup, a prestigious golf competition.
His expertise and engaging personality have made him a respected voice in the world of golf broadcasting, though he has not ventured into acting or other forms of entertainment.