If you are however interested in a chronological listenthrough/readthrough of the Audios and Novels, sans television show interference, then here is the most up to date list I posses!
1690 - Dramatic Reading 21 - The Crimson Pearl - Part 1 - Isaac Collins 1
1700 - Dramatic Reading 21 - The Crimson Pearl - Part 2 - Isaac Collins 2
1700 - Dramatic Reading 21 - The Crimson Pearl - Part 3 - Silas Collins 1
1720 - Dramatic Reading 21 - The Crimson Pearl - Part 3 - Silas Collins 2
1739 - Dramatic Reading 21 - The Crimson Pearl - Part 3 - Silas Collins 3
1780 - Dramatic Reading 21 - The Crimson Pearl - Part 4 - Marie du Pres
1781 - Dramatic Reading 51 - Haunting Memories - Hell Wind
c1781 - Dramatic Reading 1 - Angelique's Descent - Part 1 - Innocence
c1790 - Dramatic Reading 50 - Echoes of the Past - Trask the Exorcist
1791 - Dramatic Reading 21 - The Crimson Pearl - Part 4 - Millicent Collins 1
c1795 - Dramatic Reading 2 - Angelique's Descent - Part 2 - Betrayal
1796 - Dramatic Reading 10 - Final Judgement
1796 - Dramatic Reading 20 - The Lost Girl
1820 - Dramatic Reading 21 - The Crimson Pearl - Part 5 - Millicent Collins 2
1830 - Dramatic Reading 21 - The Crimson Pearl - Part 6 - Lamar Trask
1855 - Dramatic Reading 28 - Speak No Evil
1857 - Dramatic Reading 39 - Curtain Call
1861 - Dramatic Reading 51 - Haunting Memories - Communion
1874 - Dramatic Reading 24 - Dress Me In Dark Dreams
1897 - Dramatic Reading 14 - The Doll House
1897 - Dramatic Reading 21 - The Crimson Pearl - Part 7 - Simon Briar
1897 - Dramatic Reading 21 - The Crimson Pearl - Part 8 - Angelique
1897 - Dramatic Reading 07 - The Wicked And The Dead
1861 - Dramatic Reading 18 - The Carrion Queen
1899 - Dramatic Reading 05 - The Skin Walkers
1915 - Dramatic Reading 21 - The Crimson Pearl - Part 9 - Charles Deleware Tate
1920 - Dramatic Reading 15 - The Blind Painter
1926 - Dramatic Reading 21 - The Crimson Pearl - Part 10 - Ivanka Romano
1929 - Dramatic Reading 11 - Blood Dance
1932 - Dramatic Reading 32 - A Collinwood Christmas
1941 - Dramatic Reading 19 - The Poisoned Soul
1941 - Dramatic Reading 26 - The Fall Of The House of Trask
1941 - Dramatic Reading 13 - London's Burning
1941 - Dramatic Reading 17 - The Creeping Fog
1945 - Dramatic Reading 27 - Operation Victor
1950 - Dramatic Reading 25 - The Eternal Actress
1955 - Dramatic Reading 21 - The Crimson Pearl - Part 11 - Parallel Time 1955
1958 - Dramatic Reading 50 - Echoes the Past - The Missing Reel
1965 - Dramatic Reading 44 - The Darkest Shadow
196? - Dramatic Reading 54 - Love Lives On - Tuesdays and Thursdays
1967 - Dramatic Reading 03 - Clothes Of Sand
1967 - Dark Shadows Novel 1.5 - Dreams of the Dark
1967 - Dramatic Reading 08 - Echoes Of Insanity
1968 - Dramatic Reading 51 - Haunting Memories - The Ghost Ship
1968 - Dramatic Reading 52 - Phantom Melodies - Last Orders at the Blue Whale
1969 - Dramatic Reading 31 - The Haunted Refrain
1970 - Dramatic Reading 21 - The Crimson Pearl - Part 11 - Parallel Time 1970
1971 - Dark Shadows Novel 1 - Angelique's Descent
1971 - Dramatic Reading 53 - Dreams of Long Ago - The Reflected Man
1971 - Dark Shadows Novel 2 - The Salem Branch
1971 - Dark Shadows Novel 3 - Wolf Moon Rising
1971 - Dramatic Reading 53 - Dreams of Long Ago - Old Acquaintance
1972 - Dark Shadows Novel 4 - The Heiress of Collinwood
1972 - Dramatic Reading 04 - The Ghost Watcher
1973 - Dramatic Reading 09 - Curse Of The Pharaoh
1973 - Dramatic Reading 16 - The Death Mask
1973 - Dramatic Reading 21 - The Crimson Pearl
1973 - Dramatic Reading 22 - The Voodoo Amulet
1973 - Dramatic Reading 23 - The House By The Sea
1973 - Dramatic Reading 29 - The Last Stop
1973 - Dramatic Reading 52 - Phantom Melodies - The Scarlet Bride
1973 - The Tony & Cassandra Mysteries 1.1 - The Mystery at Crucifix Heights
1973 - The Tony & Cassandra Mysteries 1.2 - The Mystery of La Danse Macabre
1973 - The Tony & Cassandra Mysteries 1.3 - The Mystery of Flight 493
1973 - The Tony & Cassandra Mysteries 1.4 - The Mystery of Karmina Sonata
1973 - Dramatic Reading 30 - Dreaming Of The Water
1973 - Dramatic Reading 33 - The Phantom Bride
1973 - Dramatic Reading 34 - Beneath The Veil
1973 - Dramatic Reading 35 - The Enemy Within
1973 - Dramatic Reading 36 - The Lucifer Gambit
1973 - Dramatic Reading 37 - The Flip Side
1973 - Dramatic Reading 38 - Beyond The Grave
1973 - Dramatic Reading 40 - The Harvest Of Souls
1973 - Dramatic Reading 43 - The Devil Cat
1973 - Dramatic Reading 52 - Phantom Melodies - On The Line
1973 - Dramatic Reading 41 - The Happier Dead
1973 - Dramatic Reading 42 - Carriage Of The Damned
197? - Dramatic Reading 54 - Love Lives On - The Velvet Room
1982 - Full-Cast Drama 1.1 - The House Of Despair
1982 - Full-Cast Drama 1.2 - The Book Of Temptation
1982 - Full-Cast Drama 1.3 - The Christmas Presence
1983 - Full-Cast Drama 1.4 - The Rage Beneath
1983 - Full-Cast Drama 2 - Kingdom Of The Dead
1983 - Dramatic Reading 50 - Echoes the Past - Lunar Tides
1983 - Full-Cast Miniseries 1 - Bloodlust
1983 - Dramatic Reading 45 - Panic
1983 - Dramatic Reading 46 - The Curse of Shurafa
1983 - Dramatic Reading 49 - Tainted Love - September 1983 segment
1983 - Dramatic Reading 53 - Dreams of Long Ago - Devil's Rock
1983 - Dramatic Reading 49 - Tainted Love - Halloween 1983 segment
1983 - Dramatic Reading 47 - In the Twinkling of an Eye
1983 - Dramatic Reading 48 - Deliver Us From Evil
1983 - Dramatic Reading 49 - Tainted Love - Christmas 1983 segment
1984 - Dramatic Reading 49 - Tainted Love - Valentine's Day 1984 segment
1984 - Dramatic Reading 49 - Tainted Love - April Fool's Day 1984 segment
1984 - Dramatic Reading 49 - Tainted Love - July Fourth 1984 segment
1984 - Dramatic Reading 49 - Tainted Love - August 1984 segment
1984 - Dramatic Reading 50 - ...And Red All Over
1984 - Dramatic Reading 49 - Tainted Love - September 1984 Segment
1767 - Dark Shadows 50th Anniversary - Blood & Fire
1985? - Full-Cast Miniseries 2 - Bloodline
1986 - Dramatic Reading 51 - Haunting Memories - A Face from the Past
1986 - Dramatic Reading 52 - Phantom Melodies - In a Broken Dream
1986 - Dramatic Reading 54 - Love Lives On - Behind Closed Doors
1986 - Dramatic Reading 54 - Love Lives On - The Suitcase
1986 - Dramatic Reading 55 - Shadows of the Night - Retreat
1988 - Dramatic Reading 6 - The Path of Fate
c1990 - Dramatic Reading 50 - Echoes the Past - Confession
c1995 - Dramatic Reading 12 - The Night Whispers
2003 - Dramatic Reading 53 - Dreams of Long Ago - Cobwebs
2003 - Full-Cast Drama 0 - Return to Collinwood
1690 to 2003, not a bad span of story