King World has come close to being sold twice in the past few years, and rumors about new potential marriages seem to pop up every few months. At a presentation for analysts at Merrill Lynch last Thursday, however, King World execs said the company is definitely off the block. In fact, King World president Michael King held up a sign at the meeting that read “Not for Sale.” Sources say King did tease analysts by saying the company would have a big announcement on April 15, which, coincidentally or not, is tax day. “Perhaps tax day is an important day for the Kings,” quipped one source, who added that King gave no clue as to the nature of the announcement. A King World spokesman had no comment.