I just went through mine...here's what I have.
3rd Rock From the Sun
Angel
Batman: The Animated Series
Bones
Buffy the Vampire Slayer
Dr. Quinn Medicine Woman
Dukes of Hazzard
Futurama
Garfield and Friends
Get Smart
How I Met Your Mother
I Love Lucy
M*A*S*H
Nip/Tuck - This one ended at exactly 100 episodes
The Office
Reba
The Simpsons
That '70's Show
The X-Files
The Closer finished with just over 100 episodes. I still need to get at least 1 season..maybe 2 of that one.
Criminal Minds and C.S.I. are both over 100 episodes now..I only have 3 seasons of each so far.
I have 3 seasons of The Dick Van Dyke Show.
Facts of Life had over 100, but not that many are on DVD yet.
Fraggle Rock ended at 96 episodes - I have all of it.
Laverne & Shirley ran over 100 episodes, but again, not all of them are on DVD. Same with King of the Hill...I have the seasons available..that is only 84 episodes.
The Muppet Show and Night Court also ran for more than 100 episodes...but I'm still waiting on more releases for them.
Remington Steele ended with 94 episodes.
The Big Bang Theory is now over 100 episodes, but I don't own that many yet - it just hit 100 in this current season.