Golf TV's chief executive, Andrew Malcher, will remain as CEO of the group.
The deal cements an 18 month partnership between JJB Sports and Golf TV, in which JJB has stocked many of the products featured on Golf TV Pro Shop.
JJB also recently piloted an interactive touch-screen Golf TV Pro Shop kiosk in 26 stores, which it is now rolling out to 300 of its 400 outlets.
"With 400 retail outlets in the UK and now two dedicated golf channels giving direct access into around eight million homes we are now the world's first retail broadcaster," said Malcher.
"It's a great step forward for golfers in the UK as we can potentially bring more products to the market. For the Golf TV brand, it is recognition of what we have achieved in the two years since our launch."