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 CBS Inc. is cutting The Pat Sajak Show down to one hour from its current 90 minutes.
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 CBS insisted the
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 move wasn't a setback for the program,
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 which is the network's first entry into the late-night talk show format since 1972.
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 I have every intention 
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of making this the best possible show 
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and having it run one hour is the best way to it, 
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said Rod Perth, 
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who was named vice president of late night entertainment in August. 
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This will raise the energy level of the show.
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 CBS will continue to program action-adventure shows 
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to follow the Sajak hour.
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 But CBS News will extend its four-hour Nightwatch by 30 minutes 
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and begin at 1:30 a.m. 
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 The show, 
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despite a promising start, 
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has slipped badly in the weekly ratings 
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as compiled by A.C. Nielsen Co., 
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finishing far below Tonight on NBC, a unit of General Electric Co., and Nightline on ABC-TV, a unit of Capital Cities/ABC Inc.
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 Further fractioning the late-night audience is the addition of the Arsenio Hall Show, 
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syndicated by Paramount Communications Inc. 
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