MLS attendances last season rose to an average 17,872, up seven percent, with the league's best supported team, the Seattle Sounders, averaging 38,496 per game.
But the television ratings for the league remain just a fraction of those for the big three U.S. sports - the NFL, NBA and Major League Baseball.
The North American league also has to compete against overseas soccer, with England's Premier League proving to be more popular viewing than the domestic product.
"Growing our television ratings is a priority. It is a function of our marketing efforts. It is a function of ensuring that we have the right schedule, that we have the right promotion platform with our television partners and that we have a product that people care about.
"Those four things are pillars if you will that we focus on almost every day," he said on a conference call ahead of Saturday's opening game of the league's 17th season.
Garber accepts that making the ratings dial move won't be a quick process.
"By 2022 if we are going to achieve our vision and be one of the top leagues in the world we are going to have to have higher television ratings. There is no doubt about that.
"But the growth of our TV audience, we believe, is a function of the growth of the overall popularity of the league, our players and our clubs. And that is a process that is going to take some time," he said.
The good news for MLS is that time appears to be on their side - a recent ESPN-Luker sports poll had 'pro-soccer', including MLS and the international game, as the number two sport for those aged between 12-24-years-old.
In addition clubs have deals with local networks while the league on Thursday unveiled an improved online and digital subscription package which allows fans to see over 230 'out of market' games on mobile devices, tablets such as iPads and other digital platforms.
