Big Bang Introduction (from Khan Academy):
It might also help to watch the following videos, also from Khan Academy: Radius of Observable Universe (with correction), Red Shift, Cosmic Background Radiation (and its sequel).
Also worth watching about the connection between religion and cosmology is the first episode of the Nova series hosted by Morgan Freeman, Through the Wormhole (this is just the first part of three, you can find the rest in the 'Related' section) This video also gives a preview of the design argument, which we will discuss next:
Finally, here's William Lane Craig, whose article we've been consulting, on the kalam cosmological argument (also just the first part, see the 'Related' section for Part 2):