If you fly enough - you'll start to notice the little nuances of the videos - like in some videos, there's a caucasian pilot saying hello (male or female), others an african american pilot (male). You'll almost always see the male FA saying "welcome aboard" and then closing the overhead bin on a 767 *click*.

On the A319, you not only get the female pilot saying hi while standing under the plane - you get to hear "welcome" in 10 or so languages prior to that and you get that HORRIBLE animated guy doing the demonstration of the safety features - poorly. I still to this day can't believe the FAA OK'd that video. It's awful!