How many DIVs of class "tv" do you have? One? And you want an other DIV to trigger the cross-fade on the "tv" DIV?
If that is the case...
$(document).ready(function () {
$('div.tv, #theOtherDiv').hover(function () {
var div = $('div.tv > div');
if (div.is(':animated')) {
div.stop().fadeTo(500, 1);
} else {
div.fadeIn(250);
}
}, function () {
var div = $('div.tv > div');
if (div.is(':animated')) {
div.stop().fadeTo(1000, 0);
} else {
div.fadeOut(1000);
}
});

