The Human Rights Campaign began running this tv ad on Sunday.

MORGAN FREEMAN: "Freedom, justice and human dignity have always guided our journey toward a more perfect union. Now, across our country, we are standing together for the right of gay and lesbian Americans to marry the person they love. With historic victories for marriage, we've delivered a mandate for full equality. The wind is at our back but our journey has just begun. Join us."

From The Advocate:

In conjunction with the ad, HRC president Chad Griffin issued the following statement: “This year proved to be a pivotal turning point in the movement for marriage equality, and now we press onward with renewed vigor and public opinion squarely on our side. As we continue the march toward full equality in legislatures and the courts, it is crystal clear that the prospect of an equal future is no longer up for debate; the question now is how soon it will arrive. While we celebrate today, we will keep fighting until full equality has reached every single person in every corner of this vast country.”