LOS ANGELES—ABC announced plans Monday to replace the laugh track of 8 Simple Rules For Dating My Teenage Daughter with a somber string arrangement. "Following the untimely death of John Ritter, it's only appropriate that we repackage this madcap parenting comedy as a very special tribute to a man whose life touched us all," said producer Tim Sharbarth. "I mean, the episodes are in the can. We've gotta air them. Luckily, with the addition of new music by cellist Yo Yo Ma, the episodes offer a chance for the viewing public to say goodbye to John, a beloved legend of physical comedy." Promos for the show, which used to feature choice sexual wisecracks, now contain a message from Ritter's "TV family" and clips of the sitcom's characters hugging.