Just ran across (on Youtube) a series of lectures on the Chronicles of Narnia by Doug Wilson, pastor of Christ Church in Moscow, Idaho. Each is about an hour long, and they cover all seven books, so here they are (in original publication order, of course, what do they teach in these schools?):
LWW:
PC:
VDT:
HHB:
TSC:
TMN:
TLB:
A playlist that includes all the lectures–in addition to Narnia, he covers The Discarded Image as well as the space trilogy:
https://www.youtube.com/playlist?list=PLwI-P6VXHP-gDZ5kDtcc2MOxe_pJw0QSh