The figures, released by the IRB's broadcast managers ProActive Television, show that total coverage of the world's premier men's and women's Sevens tournament has increased exponentially with 827 hours screened over the three days of competition.
This was up 141 percent on the figure for the 2005 event in Hong Kong, which was the most-watched Rugby event of the year. Live coverage also increased from 222 hours in 2005 to 379 hours.
"The RWC Sevens in Dubai was a resounding success. Its winning formula of exciting, explosive action, competitive matches, world class men's and women's players and plenty of spectacular tries was a major hit with broadcasters the world over and has proven highly successful in reaching out to new audiences," said IRB President Bernard Lapasset.
"The figures clearly show that while Sevens continues to grow in traditional markets such as Europe and Oceania, there has been significant growth across emerging markets such as North and South America, Asia and Africa where live coverage of the tournament was more than double that of 2005 levels."
"Today's announcement is another positive step for us and highlights a global enthusiasm for Rugby Sevens at a time when the Game is reaching out for Olympic Games inclusion and illustrating to the Olympic Family its remarkable following around the world," added Lapasset.
The previous television broadcast record was set at the 2005 tournament in Hong Kong where a truly memorable event was broadcast to 300 million homes worldwide, in 125 countries through 20 international broadcasters.
Wales beat Argentina in the final in Dubai - having lost to the Pumas in their Pool earlier in the tournament. After that, though, beach's side beat New Zealand and Samoa on their way to capturing Welsh rugby's first world crown.