European broadcasters like Sky Plc and Telefonica SA pay billions for sports rights and rely on the games' allure to attract people to their more expensive broadband and television bundles. Walt Disney Co., the owner of ESPN, and broadcasters including NBC also use sport to build audiences and sell advertising.

But there are signs it doesn't hold the same spell over young people as their parents. Viewers between the ages of 18 and 24 were the least interested in sport as a genre, according to a survey of 31,000 people across 10 countries carried out by research firm Ampere Analysis.

Teen Spirit

When asked what type of content they enjoy watching, young people express less enthusiasm for sport than other genres