S15 - E1Ologies Oct. 20, 2017
S15 - E2Organisms Oct. 27, 2017
S15 - E3Oceans Nov. 03, 2017
S15 - E4Over and Ova Nov. 10, 2017
S15 - E5Odorous and Odious Nov. 24, 2017
S15 - E6Odds and Ends Dec. 01, 2017
S15 - E7Opposites Dec. 08, 2017
S15 - E8Operations Dec. 15, 2017
S15 - E9O Christmas Dec. 26, 2017
S15 - E10Origins and Openings Jan. 05, 2018
S15 - E11Objects and Ornaments Jan. 12, 2018
S15 - E12The Occult Jan. 19, 2018
S15 - E13Omnishambles Jan. 26, 2018
S15 - E14Oddballs Feb. 02, 2018
S15 - E15Occupations and Offices Feb. 09, 2018
S15 - E16Overseas Feb. 16, 2018
S15 - E17VG Part One Feb. 23, 2018
S15 - E18VG Part Two Mar. 02, 2018