ON TV, the top-rated Family Ties, starring Michael J. Fox, binds viewers to NBC. IN BOOKSTORES, Peter Wright tells his autobiographical account of working for the British secret service in the nonfiction leader, Spycatcher. IN MUSIC, Madonna’s (right) ”Who’s That Girl?” leaps from the No. 2 to the No. 1 pop single. AND IN THE NEWS, French divers retrieve jewels, coins, and assorted booty from the wreckage of the Titanic. The waterlogged goodies will go to a lab in Paris, then on a world tour. Marine salvage experts say that the treasure’s value is priceless.