So, here is my list.  These are only the complete, or mostly complete sets I've got.  I'm not including shows where I only have a small part (Alfred Hitchcock Presents, for instance, I only have the 1st season, and I only have the first two discs of Chicchana Yukitsukai Sugar)  I've broken the list up, based on the debate above as to what counts as a TV series. 

I used to have many more TV series, but I realized I'd never have time to watch them (after the debacle of trying to watch Lost during the beginning of the year) so I traded most of them in at my shop.  I didn't touch the anime, and it far outnumbers everything else in television series.

Narrower Definition:
1. Boston Legal
2. Batman: The Animated Series
3. G. I. Joe: A Real American Hero
4. Invader Zim
5. Justice League
6. Justice League Unlimited
7. Lost
8. Meerkat Manor (lacking season 4)
9. Monty Python’s Flying Circus
10. The New Adventures of Superman
11. The Outer Limits (original series)
12. Robot Chicken
13. Rome
14. Sherlock Holmes (1950’s with Ronald Howard)
15. Spawn
16. Star Trek
17. Star Trek: The Next Generation
18. Star Trek: Deep Space Nine
19. Super Friends! (lacking 2 volumes)
20. Superman: The Animated Series
21. Transformers
22. The Twilight Zone
23. The Universe

Broader Definition:
1. Aeon Flux
2. America: The Story of Us
3. The Beatles Anthology
4. The Blue Planet
5. Centennial
6. The Civil War
7. Civilisation
8. Davy Crockett
9. Eyes on the Prize: America’s Civil Rights Years
10. Fawlty Towers
11. Fishing With John
12. Founding Brothers
13. Founding Fathers
14. Geldof in Africa
15. How the Earth Changed History
16. The Hunt for Amazing Treasures
17. Jazz
18. John Adams
19. Life
20. Life in Cold Blood
21. The Life of Birds
22. The Life of Mammals
23. Monsters Resurrected
24. National Geographic: Great Migrations
25. The National Parks: America’s Best Idea
26. Nature’s Most Amazing Events
27. The Old Curiosity Shop
28. Planet Earth
29. The Presidents
30. The Prisoner
31. Rome: Rise and Fall of an Empire
32. Sherlock Holmes (1960’s with Peter Cushing)
33. Shogun
34. The Thornbirds
24. Time Life’s Lost Civilizations
35. The Veil
36. The War

Anime Series:
1. Abenobashi Mahoh Shotengai (Magical Shopping Arcade Abenobashi)
2. Ai Yori Aoshi
3. Alexander Senki (Reign: The Conqueror)
4. Argentosoma
5. Ayashi no Ceres (Ceres, Celestial Legend)
6. Azumanga Daioh
7. Basilisk
8. The Big O
9. The Big O II
10. Bishoujo Senshi Sailor Moon
11. Bishoujo Senshi Sailor Moon R
12. Black Cat
13. Blue Gender
14. Boogiepop Phantom
15. Bubblegum Crisis
16. Bubblegum Crisis: Tokyo 2040
17. Bakuretsu Tenshi (Burst Angel)
18. Chance Triangle Session (Chance Pop Session)
19. Le Chevalier d’Eon
20. Chikyu Shoujo Arjuna (Arjuna)
21. Chobits
22. Chojikou Kidan Sazan Kurosu (Super Dimensional Cavalry Southern Cross)
23. Code Geass: Hangyaku no Lelouch (Code Geass: Lelouch of the Rebellion)
24. Cowboy Bebop
25. Coyote Ragtime Show
26. Devil Hunter Yohko
27. The Devil Lady
28. Devil May Cry
29. Diamond Daydreams
30. E’s Otherwise
31. Elfen Lied
32. Ergo Proxy
33. Escaflowne
34. Furuba (Fruits Basket)
35. Gankutsuou
36. Gensoumaden Saiyuki (Saiyuki)
37. Gilgamesh
38. Gravion
39. Gravion Zwei
40. Gravitation
41. Gunslinger Girl
42. Haibane-Renmei
43. Hakkenden Shin Sho (The Hakkenden: Legend of the Dog Warriors)
44. Haunted Junction
45. Hellsing
46. Heppoko jikken animeeshon Ekuseru Saaga (Excel Saga)
47. Higashi no Eden (Eden of the East)
48. Honoo no Mirage (Mirage of Blaze)
49. Ima, soko ni iru boku (Now and Then, Here and There)
50. Kaleido Star
51. Kareshi Kanojo no Jijyou (His and Her Circumstances)
52. Kashimashi Girl Meets Girl
53. Kidou Senshi Gundam SEED DESTINY
54. Kimi ga Nozomu Eien (Rumbling Hearts)
55. Last Exile
56. Lingerie Senshi Papillon Rose (Papillon Rose)
57. Love Hina
58. Mahou Kishi Rayearth (Magic Knight Rayearth)
59. Mahou Tsukai ni Taisetsu na Koto (Someday’s Dreamers)
60. Martian Successor Nadesico
61. Mnemosyne no Musumetachi (Rin: Daughters of Mnemosyne)
62. Mushi-Shi
63. Mythical Detective Loki Ragnarok
64. Nerima Daikon Brothers
65. Ningyo no Mori (Mermaid Forest)
66. Noir
67. Otogi Zoshi
68. Princess Nine
69. Rahxephon
70. Robotech
71. Rodosu-to Senki: Eiyuu Kishiden (Record of Lodoss War: Chronicles of the Heroic Knight)
72. Samurai 7
73. Samurai Champloo
74. Seihou Bukyou Outlaw Star (Outlaw Star)
75. Serial Experiments Lain
76. Shin Seiki Evangelion (Neon Genesis Evangelion)
77. Shin Shirayuki Hime Densetsu Pretear (Pretear)
78. Shinpi no Sekai El Hazard (El Hazard: The Magnificent World)
79. Shoujo Kakumei Utena (Revolutionary Girl Utena)
80. The Skull Man
81. Space Pirate Captain Harlock
82. Trinity Blood
83. Tsubasa Reservoir Chronicle
84. Tsukuyomi Moon Phase (Moon Phase)
85. Vampire Knight
86. Weiß Kreuz (Knight Hunters)
87. Witch Hunter Robin
88. Witchblade
89. Wolf’s Rain
90. X
91. Yami no Matsuei (Descendents of Darkness)


For a grand total of 150.

Just arrived today...




Giving me 152 completed series! 

I have no idea how many TV shows I own and I'm afraid to look!

Series/Seasons are the same difference to me so I don't differentiate between them.

Whether TV shows or films, I do want my collection to be complete.

You're gonna need a bigger Boat.. ehh  I mean House ..

Quoting Addicted2DVD:

Quote:
Just arrived today...

Blade: The Series: The Complete Series

Region 1

Released: 2/12/2008

Anamorphic 1.78

Giving me 153 completed series! 

I actually really enjoyed this. It came to my attention quite a while after it had been cancelled so I resisted buying it. But eventually picked it up for £5!
Thought they did a great job. Shame it was cancelled.

Since all the others are doing it, heres my list (if i don't have all, i wrote in brackets what i have):

TV series:
1 The 4400
2 Battlestar Galactica
3 Californication (s1)
4 Dark Angel
5 Farscape
6 Firefly
7 Firma
8 Gilmore Girls
9 Heroes (s½)
10 Hornblower
11 Jericho
12 Over There
13 Ketonen & Myllyrinne
14 Kummeli: Lihaksia ja luoteja (s1)
15 Northern Exposure
16 Odyssey 5
17 Painkiller Jane
18 Roswell (s1)
19 Scrubs (s1-6)
20 Seinfeld (s1-3)
21 Stargate SG-1
22 Stargate Atlantis
23 Studio Julmahuvi
24 The Triangle

Anime Series:
1 Ai Yori Aoshi
2 Air
3 Angel Links
4 Arjuna
5 Armitage
6 Banner/Crest of the Stars
7 Blue Gender
8 Bubblegum Crisis 2040
9 Chobits
10 Clannad
11 Coyote Ragtime Show
12 Dual! Parallel Trouble Adventure
13 Ergo Proxy (vol. 1-2)
14 Escaflowne
15 Fruits Basket
16 Full Metal Panic!
17 Gasaraki (vol. 1-4)
18 Geneshaft
19 Gravion
20 Gunslinger Girl (s1)
21 Haibane-Renmei
22 Ginga: Nagareboshi Gin
23 Infinite Ryvious
24 Irresponsible Captain Tylor
25 Jinki:Extend
26 Kanon (s1)
27 Koi Kaze
28 Last Exile
29 Maburaho
30 Mahoromatic
31 Martian Successor Nadesico
32 Najica Blitz Tactics
33 Noir
34 Now and Then, Here and There
35 Paranoia Agent (vol. 1-2)
36 Please Teacher
37 Please Twins
38 Read or Die the TV
39 RahXephon
40 Rumbling Hearts
41 Rune Soldier
42 Saber Marionette J
43 Sakura Diaries
44 Sakura Wars TV
45 Serial Experiments Lain
46 Sol Bianca: The Legacy
47 Starship Operators
48 Str.A.In: Strategic Armored Infantry
49 Staratos 4 (s1)
50 The Galaxy Railways
51 Vandread
52 Zone of the Enders

I tried to write up what I have, but it's too hard to distinguish between miniseries and ongoing series that didn't last long, especially when you are talking about British or Japanese shows.

I was going back and forth on whether or not to include this in the list since it isn't store bought... but figured what the heck... is still part of my DVD Collection...

Thanks to a friend giving me his recordings off the Chiller Channel (I really wish Comcast would get that channel!)... I now have every episodes of...

Werewolf
Eric Cord (John J. York) was a graduate student in college whose life took a bizarre turn when his best friend, Ted, claims to be a werewolf. Eric does not believe him until he sees Ted transform. In self defense, Eric kills his friend, but not before being bitten.

Now, Eric is afflicted by the deadly curse of the Lycanthrope, a condition preceded by the emergence of the pentagram on the palm of his hand. The only way to eradicate the curse is to find and kill the source of the bloodline, Captain Janos Skorzeny (Chuck Connors).

Eric embarks on a cross-country hunt for the evil Skorzeny while being pursued by bounty hunter Alamo Joe Rogan (Lance LeGault) for Ted's murder.

This gives me a total of 154 complete TV Series.

This one excites me... can't wait to watch these again! I haven't seen this show since it originally aired back in the mid '80s. I used to love this show!