Geraldine is the co-founder of Oxygen Media, a 24-hour cable television network for young women. She served as chairperson and CEO of Oxygen Media until she sold it to NBC Universal in 2007. She served as president of Disney/ABC Cable Networks (from 1996-1998) where she ran cable programming for the Walt Disney Company and its ABC subsidiary. She also led the team that created Nickelodeon and Nick-at-Nite in the 80s and 90s. Geraldine was ranked No. 1 among the 50 most influential women in the entertainment industry by The Hollywood Reporter in 1996 and named one of the 25 Most Influential People in America byTime magazine that same year.