1st...Download
Firefox.

2nd...After installing the FireFox browser, install their Downloadhelper extension and
see how to use it, here
.  For a church program, you should download the video
in a 1280X720, MP4 format and then burn it to a Video DVD- so it will on play the church's DVD player.

3rd...Watch this video
if you need more help.  Sorry, it's the best I could find.

FOLLOW THESE STEPS TO DOWNLOAD VIDEOS