Relativity is an American drama television series which followed a twenty-something couple, Isabel Lukens (played by Kimberly Williams) and Leo Roth (played by David Conrad), and the lives and loves of their friends and siblings in Los Angeles. The short-lived ABC series was the product of thirtysomething producers Edward Zwick and Marshall Herskovitz (who also produced Once and Again and My So-Called Life, two other critically acclaimed series). The series ran on ABC from September 24, 1996 until April 14, 1997; it was canceled after 17 episodes due to low ratings. The first open-mouth kiss between two women on prime time television occurred on the show in 1997.