Philadelphia-area Catholics got a nasty surprise early yesterday morning while watching Good Friday Mass live from the Vatican.

Comcast accidentally switched the feed to a racy 30-second spot for the “Girls Gone Wild” series of videos, according to the Philadelphia Daily News.

A Comcast spokesman blamed the regularly scheduled Emergency Alert System test for screwing things up. He helpfully told the newspaper that “no actual pornography” was shown.

Sources say it was the most disturbing sight they’ve gotten from Comcast since their last monthly bill. (Rimshot.)

Thanks, I’ll be here all week.