This episode recaps the resolution of the apparent problem of the source of light described on day 1 and day 4, noting particularly how an appeal to God as the source of light on day 1 makes little sense.
Science without “scientism points to the divine
Old-earth creationism vs. young-earth creationism is a secondary issue that need not divide Bible-believing Christians. "Science" prior to 1850 was open to the supernatural involvement of God: scientists' investigations were meant to "think God's thoughts after Him." Modern science is largely dominated by naturalism which creates a false dichotomy between science and faith.
The miraculous appearance of light and life
The emergence of light and especially microscopic life is nothing short of miraculous. Though Genesis 1 is silent on the latter, light and the emergence of microscopic life occur almost simultaneously, in geological time. Is it possible that the Bible describes this connection when it says the "Spirit of God was hovering over the waters?"
“Let there by light..”
Reconciliation of the appearance of light on day 1 with the so-called "creation" of the sun on day 4