sentences:  The popularisation of colour television in the 1970s, brought the game of snooker to a new demographic of viewers.The decade was dominated by Ray Reardon from Tredegar, who won six World Snooker Championship titles, and when the first world rankings were introduced in 1976, Reardon became the first world number one snooker player.Some of Reardon's contemporaries included Gary Owen from Tumble and Cliff Wilson also from Tredegar.