John Travolta, Grant Hill, Sinead O'Connor Mailbag: ""Farrah Fawcett"" (Calvert) explains her behavior from last week. Also, Kenny ""The Quick-Witted Stagehand"" Sheehan makes his 1000th TV appearance, which is followed by footage of his (bogus) television debut on Ed Sullivan in 1964. Details Casts Title John Travolta, Grant Hill, Sinead O'Connor Genres Talk Comedy Release Date 1997-06-13 Episode Runtime 01 Hours 03 Minutes Season Number 4 Episode Number 168 Production Companies Worldwide Pants, CBS Entertainment Productions, CBS Productions, CBS Studios David Letterman Self - Host Paul Shaffer Self -Musical Director Alan Kalter Self - Announcer (voice)