From the earliest days of television, there were spin-offs. Series that featured characters who started on one series and then graduated to a series of their own. Even The Andy Griffith Show  began as an episode of Make Room for Daddy (a.k.a. The Danny Thomas Show).
Over the decades there have been good, hit TV series spun off previous ones, such as Frasier coming from Cheers . Of course there have been rather disappointing ones that flopped, like Joey coming from Friends . But naturally we tend to remember the ones that we liked best. Ones that made themselves a part of our appointment viewing, just as the parent series did.
I’ve listed some original series and then the popular spin-offs. And as you’ll see in some cases, the spin-off itself produced a spin-off or two.
All in the Family  Maude 
The Jeffersons 
Buffy the Vampire Slayer  Angel 
Cheers  Frasier 
CSI: Crime Scene Investigation  CSI: Miami  CSI: New York 
Doctor Who  Torchwood 
The Sarah Jane Adventures 
Grey’s Anatomy  Private Practice 
Happy Days  Mork & Mindy 
Law & Order  Law & Order: Special Victims Unit  Law & Order: Criminal Intent 
Law & Order: Trial by Jury  Law & Order: U K 
JAG: Judge Advocate General  NCIS: Naval Criminal Investigation Service  NCIS: L.A. 
The Mary Tyler Moore Show   Rhoda 
The Six Million Dollar Man  The Bionic Woman 
Star Trek   Star Trek: the Next Generation   Star Trek: Deep Space Nine 
Star Trek: Voyager  Enterprise 
Stargate: SG1  Stargate: Atlantis  Stargate: Universe 
There’s no doubt that the television industry will continue this tradition. The Closer  will close out its run this summer, but the story will continue in a slightly altered version with Major Crimes. It’s like hit movies spawning sequels, prequels, and reboots. In fact, there are some TV reboots being planned right now, probably inspired by the successful reworking of Battlestar Galactica into a darker, more dangerous version, also titled Battlestar Galactica . There’s even a new version of The Munsters  in the works.
In fact, I confess that there’s a spin-off I’d like to happen. Like Raj’s parents on The Big Bang Theory . It’d be fun to see more of them.
Are there any favorites I missed? Or any remakes or reboots you’d like to see?