With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Sherlock (TV series) is on DVD.
text_B: Tabitha is an American fantasy sitcom and a spin-off of Bewitched that aired on ABC from September 10 , 1977 to January 14 , 1978 .. sitcom. sitcom. ABC. American Broadcasting Company. Bewitched. Bewitched. fantasy. Fantasy television. spin-off. Spin-off ( media ). The series starred Lisa Hartman in the title role as Tabitha Stevens , the witch daughter of Samantha and Darrin Stephens who was introduced on Bewitched during its second season .. Lisa Hartman. Lisa Hartman Black. Bewitched. Bewitched. witch. witch. In the series , Tabitha is portrayed as a young woman working as a production assistant at a television station and living in Los Angeles .. Los Angeles. Los Angeles. The supporting cast includes David Ankrum as Tabitha 's brother , Adam , with whom she works ; Karen Morrow as Tabitha and Adam 's meddlesome aunt , Minerva ; Robert Urich as an egomaniacal talk show host who is a sometime love interest for Tabitha ; and Mel Stewart as Tabitha and Adam 's cranky , but loveable , boss .. Robert Urich. Robert Urich. Mel Stewart. Mel Stewart. Karen Morrow. Karen Morrow. Unlike Bewitched , which was a hit for ABC and aired for eight seasons , Tabitha failed to catch on with viewers and was canceled after one season .. ABC. American Broadcasting Company. Bewitched. Bewitched
not_related.