Julia Louis-Dreyfus will host Saturday Night Live on March 17. Snow Patrol is musical guest.... A David Cassidy memoir in which the Partridge Family heartthrob recalls his drug use and wild romps and discusses his "oft-complimented endowment" will only be released in Britian, says the New York Daily News, as it doesn't have a U.S. publisher.... ABC's World News with Charles Gibson was the top-rated evening newscast last week.... Naomi Watts and longtime beau Liev Schreiber are expecting their first child together. Yawn.... Sawyer smoochin' Kate? Alex macking on Addison? Cast your vote for TV's sexiest kiss in the new TVGuide.com poll.