Gilda Radner, left, as Roseanne Roseannadanna, with Jane Curtin during "SNL's" "Weekend Update."

Gilda Radner, left, as Roseanne Roseannadanna, with Jane Curtin during "SNL's" "Weekend Update."

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How Gilda Radner changed comedy and helped make 'SNL' a cultural treasure

Gilda Radner -- one of the most influential cast members in "Saturday Night Live" history -- played a pivotal role in shaping "SNL," forever changing the course of comedy.