Cardinal Sean O'Malley has launched a program in Boston that aims to bring lapsed Catholics back to church.

The Boston Archdiocese kicked off "Catholics Come Home" on Ash Wednesday, the first day of Lent and the start of the holy season that ends with Easter Sunday.

The campaign includes parish outreach programs and an extensive TV ad campaign that began Monday and continues until Easter.

The Boston Archdiocese says about 16 percent of its more than 1.8 million Catholics attend Mass weekly. The national weekly attendance rate for Catholics is about 33 percent.

The campaign might be a tough sell in Boston, the center of a nationwide clergy sex abuse scandal that saw abusive priests shuffled between parishes while their crimes were kept secret.