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A typically heavy Minnesota snowstorm leaves Mary (Mary Tyler Moore) in charge of the WJM-TV newsroom during an election-night telecast. The rules stipulate that the show must remain on the air until a winner is declared; unfortunately, the blizzard has knocked out all telephone lines, so no one knows who's winning or losing. As anchorman Ted Baxter (Ted Knight) ad-libs hysterically and Mary's pal, Rhoda (Valerie Harper), "voluntarily" runs the tally board, Mary must not only contend with the disaster at hand, but also several WJM-TV personalities who are none too pleased that the election coverage has pre-empted their programs. "The Snow Must Go On" was originally broadcast on November 7, 1970.