Think the Clinton sex scandal is all played out? That all the jokes have been made on Leno and Letterman and Mad TV?

Think again. Chicago's legendary sketch and improv troupe, The Second City, will open its latest Second City e.t.c. revue, May 17, and the title should be a give-away as to its content: "If The White House Is A-Rockin', Don't Come A-Knockin'."

Noah Gregoropoulos will direct the revue, which "explores our nation's obsession with other people's unhappiness and our own misery." Aside from an improvised press conference for President Clinton, the show will feature vignettes about an AA meeting and a ex-GI's return to Viet Nam.

Starring in ITWHIA-R,DCA-K are Matt Dwyer, Kristin Ford, Craig Cackowski, Tami Sagher, Horatio Sanz and Rebecca Sohn, backed by musical director Jeff Richmond. (Richmond directed the current Second City mainstage revue, Promise Keepers, Losers Weepers and the previous Whitney Houston, We Have A Problem.)

For tickets ($11-$16) and information on The Second City e.t.c.'s If The White House Is A-Rockin', Don't Come A-Knockin' at the company's home on North Wells St., call (312) 642-8189. -- By David Lefkowitz