So many good US TV drama series have been born from an original series. The original drama series which started the franchises are listed to denote the entire list of series in the franchise. Which do you think are the best of the collective franchises?
http://www.ranker.com/list/best-of-the-us-drama-series-franchises/lanayoshii,
CSI: Crime Scene Investigation
CSI: Miami; CSI: New York; Cold Case; Without A Trace
ER
Third Watch; Medical Investigation
Grey's Anatomy
Private Practice
Law & Order
Law & Order: Special Victims Unit; Law & Order: LA; Law & Order: Criminal Intent; Law & Order: UK; Law & Order: Trial by Jury; Law & Order: Crime and Punishment; Conviction
Stargate SG-1
Stargate Infinity; Stargate Atlantis; Stargate Universe
Star Trek: The Original Series
Star Trek: The Animated Series; Star Trek: The Next Generation; Star Trek: Deep Space Nine; Star Trek: Voyager; Star Trek: Enterprise
The Practice
Boston Legal; Boston Public
The X-Files
The Lone Gunmen; Millennium
Walker, Texas Ranger
Sons of Thunder; Martial Law; Early Edition
Matlock
Jake and the Fatman; Diagnosis: Murder