Question: In what sitcom did Karen Walker was a fictional character of?
Sentence (from "Megan Mullally"): She is best known for her role as Karen Walker on the NBC sitcom "Will & Grace" (1998–2006, 2017-), for which she received 7 consecutive Primetime Emmy Award nominations for Outstanding Supporting Actress in a Comedy Series, winning twice in 2000 and 2006.
Relevant evidence: Yes