A LOCALLY made ad that became a YouTube sensation could play a role in the US elections after same-sex marriage supporters launched a campaign to get it on TV.

US group It's Time/Marriage Equality has permission to use the GetUp! ad, ''It's Time'', seen by more than 6.5 million people since it was put up on YouTube in November.

A scene from the It's Time ad by GetUp!

Marriage Equality has partnered with a fund-raising platform called Social Teeth and is campaigning to raise a minimum of $50,000 to get an edited version of the ad onto American TV in the lead-up to the November election. The group is working with global media buying group Aegis and hopes to screen the ad on US networks, including ABC, CBS, NBC, CNN and Fox News.

Daniel Wein, executive director of It's Time/Marriage Equality, said the goal was to tap into growing support for the issue. Barack Obama earlier this year became the first US president to publicly support gay marriage.