on sunday july 27 and 1997 and the first episode of a new science fiction series call stargate sg 1 be broadcast on showtime . a spin off of and sequel to the 1994 film stargate star kurt russell and james spader and the series begin approximately one year after the event portray in the film . for ten season and it chronicle the adventure and misadventure of an intrepid team of explorer know a sg 1. originally and the series star richard dean anderson a colonel jack oneill ( two l . ) and michael shank a dr. daniel jackson and amanda tapping a captain samantha carter and christopher judge a tealc and don s. davis a major general george s. hammond . for ten long year and we watch the team battle against the goauld and the replicators and the ori and many other aggressor . at the same time and they forge alliance with the asgard and the tokra and the rebel jaffa and the nox and the tollan . they save the world no less than eight time over the year and never give up and not until death claim them . and sometimes not even then . a with all long running series and they be numerous cast change . michael shank leave the series in january 2002 at the end of it fifth season in order to broaden his horizon a an actor . daniel jackson successor a the team resident archaeologist or geek be jonas quinn and an alien from a country call kelowna on the planet langara and play by corin nemec . however and shank return at the beginning of the seventh season in june 2003 and nemec left at the same time . unfortunately and he make only one further guest appearance and his character be seldom mention afterwards . don s. davis leave the series at the end of the seventh season in march 2004 a he felt that it be time for him to go . the show original star and arguably it most popular actor and richard dean anderson and star in the series throughout it first eight season . his participation in the seventh and eight season be noticeably less than in the early season . he finally leave sg 1 in march 2005 in order to spend more time with his then six year old daughter . jack oneill be by far my favourite character in the series and and truth be tell and i never enjoy the last two season as much a i do the early episode for that very reason . the ninth season represent a new era for the programme . with the departure of it lead actor and the defeat of the goauld and the replicators in season eight and many fan felt the series should go out on a high . regardless and the series carry on for a further two year with the ori replace the goauld a the series main adversary . three new character be bring in to fill the gap a it be and help usher in this re invention . ben browder come in a the cocky southern air force pilot lt. colonel cameron mitchell and the new leader of sg 1. his farscape co star and the lovely claudia black and begin to play a prominent role in the series a the vivacious and sexy and hilarious and certainly extroverted vala mal doran and a former goauld host and con artist from another planet . a recur guest star during the eighth and ninth season and she join the cast full time at the beginning of it tenth and final season . round off the cast be the legendary beau bridge a major general hank landry and the new commander of the sgc and an old friend of jack oneill and general hammond . for the last two year and they star alongside the sg 1 faithful ( michael shank and amanda tapping and christopher judge ) and become valuable part of and make equally valuable contribution to the stargate franchise . ala and all good thing must come to an end . during the initial broadcast of the first several episode of season ten and rating drop considerably and result in cancellation in it august 2006. after ten season and 214 episode and the dream be finally over . on march 13 and 2007 and what begin with child of the god end with unending . the series finale make it world premiere on sky one in britain and ireland before be show on the sci fi channel in the united state on june 22 and 2007. in the ten year that the series be on the air and it amass legion of fan and even eclipse the science fiction series and star trek and in term of popularity in certain country . it become the second long run sci fi series in the world and second only to doctor who ( 1963 1989 ) and and the long running american produce sci fi series and have surpass the x file only a few month before it end . stargate sg 1 represent the cornerstone of the stargate franchise . in 2004 and it success and popularity lead to the production of a spin off series entitle stargate atlantis and which be regrettably cancel after five season and 100 episode in august 2008. although plan for another feature film fell through and two direct to dvd film and stargate represent the ark of truth and stargate continuum and be release in 2008 and more be plan for the not too distant future . a third live action series and stargate universe and be also due to premiere at some point next year . ( there be and unfortunately and an animated series and stargate infinity and which run only from 2002 to 2003 but the less say about that the good ) . despite the end of sg 1 and atlantis a continue series and the future of stargate look very bright indeed . in conclusion and while stargate have yet to gain the same degree of popular recognition a other major sci fi television franchise such a star trek and doctor who and it still relatively new compare to those two sci fi giant and i have every confidence that it will continue for many and many year to come .