| episode | air date | countdown | title |
| S11E10 | 2018-03-21 | | My Struggle IV | |
| S11E09 | 2018-03-14 | | Nothing Lasts Forever | |
| S11E08 | 2018-03-07 | | Familiar | |
| S11E07 | 2018-02-28 | | Rm9sbG93ZXJz | |
| S11E06 | 2018-02-07 | | Kitten | |
| S11E05 | 2018-01-31 | | Ghouli | |
| S11E04 | 2018-01-24 | | The Lost Art of Forehead Sweat | |
| S11E03 | 2018-01-17 | | Plus One | |
| S11E02 | 2018-01-10 | | This | |
| S11E01 | 2018-01-03 | | My Struggle III | |
|
| |
| S10E06 | 2016-02-22 | | My Struggle II | |
| S10E05 | 2016-02-15 | | Babylon | |
| S10E04 | 2016-02-08 | | Home Again | |
| S10E03 | 2016-02-01 | | Mulder & Scully Meet the Were-Monster | |
| S10E02 | 2016-01-25 | | Founder's Mutation | |
| S10E01 | 2016-01-24 | | My Struggle | |
|
| |
| S09E20 | 2002-05-19 | | The Truth II (2) | |
| S09E19 | 2002-05-19 | | The Truth (1) | |
| S09E18 | 2002-05-12 | | Sunshine Days | |
| S09E17 | 2002-05-05 | | Release | |
| S09E16 | 2002-04-28 | | William | |
| S09E15 | 2002-04-21 | | Jump the Shark | |
| S09E14 | 2002-04-14 | | Scary Monsters | |
| S09E13 | 2002-04-07 | | Improbable | |
| S09E12 | 2002-03-31 | | Underneath | |
| S09E11 | 2002-03-17 | | Audrey Pauley | |
| S09E10 | 2002-03-10 | | Providence (2) | |
| S09E09 | 2002-03-03 | | Provenance (1) | |
| S09E08 | 2002-01-27 | | Hellbound | |
| S09E07 | 2002-01-13 | | John Doe | |
| S09E06 | 2002-01-06 | | Trust No 1 | |
| S09E05 | 2001-12-16 | | Lord of the Flies | |
| S09E04 | 2001-12-09 | | 4-D | |
| S09E03 | 2001-12-02 | | Dæmonicus | |
| S09E02 | 2001-11-18 | | Nothing Important Happened Today II (2) | |
| S09E01 | 2001-11-11 | | Nothing Important Happened Today (1) | |
| |
| S08E21 | 2001-05-20 | | Existence (2) | |
| S08E20 | 2001-05-13 | | Essence (1) | |
| S08E19 | 2001-05-06 | | Alone | |
| S08E18 | 2001-04-22 | | Vienen | |
| S08E17 | 2001-04-15 | | Empedocles | |
| S08E16 | 2001-04-08 | | Three Words | |
| S08E15 | 2001-04-01 | | Deadalive (2) | |
| S08E14 | 2001-02-25 | | This is Not Happening (1) | |
| S08E13 | 2001-02-18 | | Per Manum | |
| S08E12 | 2001-02-11 | | Medusa | |
| S08E11 | 2001-02-04 | | The Gift | |
| S08E10 | 2001-01-21 | | Badlaa | |
| S08E09 | 2001-01-14 | | Salvage | |
| S08E08 | 2001-01-07 | | Surekill | |
| S08E07 | 2000-12-17 | | Via Negativa | |
| S08E06 | 2000-12-10 | | Redrum | |
| S08E05 | 2000-12-03 | | Invocation | |
| S08E04 | 2000-11-26 | | Roadrunners | |
| S08E03 | 2000-11-19 | | Patience | |
| S08E02 | 2000-11-12 | | Without (2) | |
| S08E01 | 2000-11-05 | | Within (1) | |
| |
| S07E22 | 2000-05-21 | | Requiem | |
| S07E21 | 2000-05-14 | | Je Souhaite | |
| S07E20 | 2000-05-07 | | Fight Club | |
| S07E19 | 2000-04-30 | | Hollywood A.D. | |
| S07E18 | 2000-04-16 | | Brand X | |
| S07E17 | 2000-04-09 | | All Things | |
| S07E16 | 2000-04-02 | | Chimera | |
| S07E15 | 2000-03-19 | | En Ami | |
| S07E14 | 2000-03-12 | | Theef | |
| S07E13 | 2000-02-27 | | First Person Shooter | |
| S07E12 | 2000-02-20 | | X-COPS | |
| S07E11 | 2000-02-13 | | Closure (2) | |
| S07E10 | 2000-02-06 | | Sein Und Zeit (1) | |
| S07E09 | 2000-01-23 | | Signs & Wonders | |
| S07E08 | 2000-01-16 | | The Amazing Maleeni | |
| S07E07 | 2000-01-09 | | Orison | |
| S07E06 | 1999-12-12 | | The Goldberg Variation | |
| S07E05 | 1999-12-05 | | Rush | |
| S07E04 | 1999-11-28 | | Millennium | |
| S07E03 | 1999-11-21 | | Hungry | |
| S07E02 | 1999-11-14 | | The Sixth Extinction II: Amor Fati (3) | |
| S07E01 | 1999-11-07 | | The Sixth Extinction (2) | |
| |
| S06E22 | 1999-05-16 | | Biogenesis (1) | |
| S06E21 | 1999-05-09 | | Field Trip | |
| S06E20 | 1999-05-02 | | Three of a Kind | |
| S06E19 | 1999-04-25 | | The Unnatural | |
| S06E18 | 1999-04-18 | | Milagro | |
| S06E17 | 1999-04-11 | | Trevor | |
| S06E16 | 1999-03-28 | | Alpha | |
| S06E15 | 1999-03-07 | | Arcadia | |
| S06E14 | 1999-02-28 | | Monday | |
| S06E13 | 1999-02-21 | | Agua Mala | |
| S06E12 | 1999-02-14 | | One Son (2) | |
| S06E11 | 1999-02-07 | | Two Fathers (1) | |
| S06E10 | 1999-01-24 | | Tithonus | |
| S06E09 | 1999-01-17 | | S.R. 819 | |
| S06E08 | 1999-01-10 | | The Rain King | |
| S06E07 | 1999-01-03 | | Terms of Endearment | |
| S06E06 | 1998-12-13 | | How The Ghosts Stole Christmas | |
| S06E05 | 1998-12-06 | | Dreamland II (2) | |
| S06E04 | 1998-11-29 | | Dreamland (1) | |
| S06E03 | 1998-11-22 | | Triangle | |
| S06E02 | 1998-11-15 | | Drive | |
| S06E01 | 1998-11-08 | | The Beginning | |
| |
| S05E20 | 1998-05-17 | | The End | |
| S05E19 | 1998-05-10 | | Folie à Deux | |
| S05E18 | 1998-05-03 | | The Pine Bluff Variant | |
| S05E17 | 1998-04-26 | | All Souls | |
| S05E16 | 1998-04-19 | | Mind's Eye | |
| S05E15 | 1998-03-29 | | Travelers | |
| S05E14 | 1998-03-08 | | The Red and the Black (2) | |
| S05E13 | 1998-03-01 | | Patient X (1) | |
| S05E12 | 1998-02-22 | | Bad Blood | |
| S05E11 | 1998-02-15 | | Kill Switch | |
| S05E10 | 1998-02-08 | | Chinga | |
| S05E09 | 1998-01-11 | | Schizogeny | |
| S05E08 | 1998-01-04 | | Kitsunegari | |
| S05E07 | 1997-12-14 | | Emily (2) | |
| S05E06 | 1997-12-07 | | Christmas Carol (1) | |
| S05E05 | 1997-11-30 | | The Post-Modern Prometheus | |
| S05E04 | 1997-11-23 | | Detour | |
| S05E03 | 1997-11-16 | | Unusual Suspects | |
| S05E02 | 1997-11-09 | | Redux II (3) | |
| S05E01 | 1997-11-02 | | Redux (2) | |
| |
| S04E24 | 1997-05-18 | | Gethsemane (1) | |
| S04E23 | 1997-05-11 | | Demons | |
| S04E22 | 1997-05-04 | | Elegy | |
| S04E21 | 1997-04-27 | | Zero-Sum | |
| S04E20 | 1997-04-20 | | Small Potatoes | |
| S04E19 | 1997-04-06 | | Synchrony | |
| S04E18 | 1997-03-23 | | Max (2) | |
| S04E17 | 1997-03-16 | | Tempus Fugit (1) | |
| S04E16 | 1997-02-23 | | Unrequited | |
| S04E15 | 1997-02-16 | | Kaddish | |
| S04E14 | 1997-02-09 | | Memento Mori | |
| S04E13 | 1997-02-02 | | Never Again | |
| S04E12 | 1997-01-26 | | Leonard Betts | |
| S04E11 | 1997-01-12 | | El Mundo Gira | |
| S04E10 | 1996-12-15 | | Paper Hearts | |
| S04E09 | 1996-12-01 | | Terma (2) | |
| S04E08 | 1996-11-24 | | Tunguska (1) | |
| S04E07 | 1996-11-17 | | Musings of a Cigarette Smoking Man | |
| S04E06 | 1996-11-10 | | Sanguinarium | |
| S04E05 | 1996-11-03 | | The Field Where I Died | |
| S04E04 | 1996-10-27 | | Unruhe | |
| S04E03 | 1996-10-18 | | Teliko | |
| S04E02 | 1996-10-11 | | Home | |
| S04E01 | 1996-10-04 | | Herrenvolk (2) | |
| |
| S03E24 | 1996-05-17 | | Talitha Cumi (1) | |
| S03E23 | 1996-05-10 | | Wetwired | |
| S03E22 | 1996-05-03 | | Quagmire | |
| S03E21 | 1996-04-26 | | Avatar | |
| S03E20 | 1996-04-12 | | Jose Chung's 'From Outer Space' | |
| S03E19 | 1996-03-29 | | Hell Money | |
| S03E18 | 1996-03-08 | | Teso Dos Bichos | |
| S03E17 | 1996-02-23 | | Pusher | |
| S03E16 | 1996-02-16 | | Apocrypha (2) | |
| S03E15 | 1996-02-09 | | Piper Maru (1) | |
| S03E14 | 1996-02-02 | | Grotesque | |
| S03E13 | 1996-01-26 | | Syzygy | |
| S03E12 | 1996-01-05 | | War of the Coprophages | |
| S03E11 | 1995-12-15 | | Revelations | |
| S03E10 | 1995-12-01 | | 731 (2) | |
| S03E09 | 1995-11-24 | | Nisei (1) | |
| S03E08 | 1995-11-17 | | Oubliette | |
| S03E07 | 1995-11-10 | | The Walk | |
| S03E06 | 1995-11-03 | | 2Shy | |
| S03E05 | 1995-10-20 | | The List | |
| S03E04 | 1995-10-13 | | Clyde Bruckman's Final Repose | |
| S03E03 | 1995-10-06 | | D.P.O. | |
| S03E02 | 1995-09-29 | | Paper Clip (3) | |
| S03E01 | 1995-09-22 | | The Blessing Way (2) | |
| |
| S02E25 | 1995-05-19 | | Anasazi (1) | |
| S02E24 | 1995-05-12 | | Our Town | |
| S02E23 | 1995-05-05 | | Soft Light | |
| S02E22 | 1995-04-28 | | F. Emasculata | |
| S02E21 | 1995-04-14 | | The Calusari | |
| S02E20 | 1995-03-31 | | Humbug | |
| S02E19 | 1995-03-10 | | Død Kalm | |
| S02E18 | 1995-02-24 | | Fearful Symmetry | |
| S02E17 | 1995-02-17 | | End Game (2) | |
| S02E16 | 1995-02-10 | | Colony (1) | |
| S02E15 | 1995-02-03 | | Fresh Bones | |
| S02E14 | 1995-01-27 | | Die Hand Die Verletzt | |
| S02E13 | 1995-01-13 | | Irresistible | |
| S02E12 | 1995-01-06 | | Aubrey | |
| S02E11 | 1994-12-16 | | Excelsis Dei | |
| S02E10 | 1994-12-09 | | Red Museum | |
| S02E09 | 1994-11-18 | | Firewalker | |
| S02E08 | 1994-11-11 | | One Breath | |
| S02E07 | 1994-11-04 | | 3 | |
| S02E06 | 1994-10-21 | | Ascension (2) | |
| S02E05 | 1994-10-14 | | Duane Barry (1) | |
| S02E04 | 1994-10-07 | | Sleepless | |
| S02E03 | 1994-09-30 | | Blood | |
| S02E02 | 1994-09-23 | | The Host | |
| S02E01 | 1994-09-16 | | Little Green Men | |
| |
| S01E24 | 1994-05-13 | | The Erlenmeyer Flask | |
| S01E23 | 1994-05-06 | | Roland | |
| S01E22 | 1994-04-29 | | Born Again | |
| S01E21 | 1994-04-22 | | Tooms | |
| S01E20 | 1994-04-15 | | Darkness Falls | |
| S01E19 | 1994-04-01 | | Shapes | |
| S01E18 | 1994-03-18 | | Miracle Man | |
| S01E17 | 1994-02-18 | | E.B.E. | |
| S01E16 | 1994-02-11 | | Young at Heart | |
| S01E15 | 1994-02-04 | | Lazarus | |
| S01E14 | 1994-01-21 | | Gender Bender | |
| S01E13 | 1994-01-07 | | Beyond the Sea | |
| S01E12 | 1993-12-17 | | Fire | |
| S01E11 | 1993-12-10 | | Eve | |
| S01E10 | 1993-11-19 | | Fallen Angel | |
| S01E09 | 1993-11-12 | | Space | |
| S01E08 | 1993-11-05 | | Ice | |
| S01E07 | 1993-10-29 | | Ghost in the Machine | |
| S01E06 | 1993-10-22 | | Shadows | |
| S01E05 | 1993-10-08 | | The Jersey Devil | |
| S01E04 | 1993-10-01 | | Conduit | |
| S01E03 | 1993-09-24 | | Squeeze | |
| S01E02 | 1993-09-17 | | Deep Throat | |
| S01E01 | 1993-09-10 | | Pilot | |
