So it's been a while since I updated my list and Brian and I (after watching a series or two) started trying to remember other shows we had seen. I think this is everything. The times were based on a 22 minute-per-episode rating. The oddballs (12 minutes an episode/7 minutes an episode) were counted as half an episode each in the episode count. Some series (Seirei, Narutaru, and a few others) I had forgotten up until a minute ago and aren't in the final count yet.
NOTE: Being in this list says nothing about quality or watchability (there's quite a few I'm ashamed to have watched to completion). The order is totally random, and doesn't correlate to anything.
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Finished (Not planning on watching anymore):
FLCL (6 episodes)
Chobits (26 episodes)
.hack//Sign (28 episodes)
ikkitousen (26 episodes)
S.cry.ed (26 episodes)
Ah! My Goddess OVA (6 episodes)
Ah! My Goddess Movie (1 hour 45 minutes)
Azumanga Daioh (26 episodes)
R.O.D. (3 episodes, 45min each)
Full Metal Alchemist (51 episodes)
Evangelion (26 episodes; 30 minute extra)
Excel Saga (26 episodes)
ZION: I Wish You Were Here (4 episodes)
Kannazuki No Miko (12 episodes)
Kanon (13 episodes)
Lain (13 episodes)
Boogiepop Phantom (12 episodes)
Metropolis (2 hours)
Please Teacher (13 episodes)
Outlaw Star (26 episodes)
Paranoia Agent (13 episodes)
Punipuni Poemi (2 episodes)
Air (13 episodes)
Haibane Renmei (13 Episodes)
Niea Under 7 (13 episodes)
Hellsing (13 Episodes)
Bokurano (24 episodes)
Mushishi (26 episodes)
Monster (74 episodes)
Black Lagoon (24 episodes)
Suzumiya Haruhi no Yu Utsuu (14 episodes)
Samurai Champloo (26 episodes)
Akagi (26 episodes)
Kino no Tabi (13 episodes)
**Bleach (73 episodes)
Cowboy Bebop (26 episodes)
Tengen Toppa Gurren Lagann (27 Episodes)
Elfen Lied (13 episodes; 30min special)
Higurashi no Naku koro Ni (26 episodes)
Tonari no Totoro (1 hour, 26 minutes)
Code Geass (26 episodes)
Karin (24 episodes)
Rozen Maiden (12 episodes)
Rozen Maiden: Traumend (12 episodes)
Scrapped Princess (24 episodes)
R.O.D. the TV (26 episodes)
Ouran Host Bu (26 episodes)
Last Exile (26 episodes)
Shingetsutan Tsukihime (12 episodes)
Lucky Star (24 episodes)
Smash Hit (8 episodes, 12min each)
Rec (9 episodes, 12min each)
Cat Soup (32 minutes)
Arcade Gamer Fubuki (4 episodes)
**Naruto (137 episodes)
Toki wo Kakeru Shoujou (1 hour, 30 minutes)
Yakitate Japan (69 episodes)
Mr. Stain on Junk Alley (13 episodes, 7min each; 30min special)
Seirei no Moribito (26 episodes)
Narutaru (13 episodes)
Still happening (and I plan to finish):
Kaiji (14 ongoing)
Higurashi no Naku koro Ni Kai (9 working)
Clannad (14 ongoing)
Watched Some (not planning on watching anymore) (not factored in):
Kamichuu (3 episodes)
Noir (5 episodes)
He is My Master (2 episodes)
Chrono Crusade (3 episodes)
Rentalu Magica (1 episode )
Shakugan no Shana (10 episodes)
Lamune (2 episodes)
Keroro Gunsou (8 episodes)
Full Metal Panic (4 episodes)
-------------------------FINAL TALLY--------------------------------
Episode count: 1199.5 (Movies added in next step)
Minutes: 29963.94
Hours: 499.40
Days: 20.81
Weeks: 2.97
** Indicates that although it technically qualifies as a "Watched Some" series, they exceeded 26 episodes before I stopped, and as such it was longer than most series and deserves a place in the tally.