Here's the schedule with the missing episode. Sorry for the double post.
01/04 (PRE-EMPTED: MOVES TO 01/15) 01/11 "Meeting the Manger Babies" (5E12) 01/15 (SPECIAL AIRING: 8:00 PM) "Texas City Twister" (5E02) 01/18 "How To Fire A Rifle Without Really Trying" (5E01)