According to Comcast it was a mistake in their test of the Emergency Alert System. During an early morning broadcast of Good Friday Mass at the Vatican, something went wrong and a 30-second ad of “Girls Gone Wild” appeared.

It seems to be more than a glitch, but maybe someone hacked into the system and served up the racy ad. Of all the things that could go wrong, why did this ad make its way to viewers during Good Friday Mass? It looks like a selective process considering what was being aired at the time.

Comcast spokesman Jeff Alexander says the 2 a.m. Friday programming glitch was due to a required test of the Emergency Alert System. He says such tests are usually done in the overnight hours.

The test automatically tunes viewers to a preselected channel that would provide information in the event of an emergency. But during tests, the channel airs regular programming, which in this case included a paid advertisement for the racy videos.

Alexander says the problem affected the network’s entire local area, but only one person called to complain.

Who’s up at 2 a.m. to watch Mass?