Neil Patrick Harris and Stephen Colbert Set for "David Letterman" Appearances; Guests Also Announced for "Craig Ferguson" and "The Talk"

Neil Patrick Harris and Stephen Colbert Set for "David Letterman" Appearances; Guests Also Announced for "Craig Ferguson" and "The Talk" by Andrew Gans

Upcoming guests have been announced for three CBS programs: "Late Show with David Letterman," "The Late Late Show with Craig Ferguson" and "The Talk."

SOURCE: Playbill at 10:00AM on April 18, 2014

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