Reply #10: Just verbage, but I've seen the split-screen shot, so someone has it.

[LynnTheDem]

In 1989, the television networks showed split-screen images of Mr. Bush sparring and joking with reporters on one side and a military honor guard unloading coffins from a military action that he had ordered in Panama on the other.
Mr. Bush, a World War II veteran, was caught unaware and subsequently asked the networks to warn the White House when they planned to use split screens. The networks declined.
At the next opportunity, in February 1991 during the Persian Gulf war, the Pentagon banned photos of returning coffins.

Writing in the American Journalism Review, Jamie McIntyre, a former CNN senior Pentagon correspondent, makes clear that the president was unaware that while he was conducting his press conference, “the first casualties of the assault were arriving at Dover, and several television networks (ABC, CBS and CNN) had switched to a split-screen image, juxtaposing the jocular president against the grim reality of the invasion he ordered.” McIntyre then writes ruefully: “It was the beginning of the end not just of live coverage, but of any photography or media coverage of war dead returning to the United States.”
http://www.frontpagemag.com/Articles/Read.aspx?GUID=CBA8808B-B5A9-441D-8FA5-D668226BFFCE

And here we go; LAT mentions the real reason -REPUBLICAN POLITICS- why the ban came into place.

President George H.W. Bush's administration imposed the ban on media coverage of the arrival of fallen troops' remains at Dover Air Force Base during the Gulf War in February 1991. It came about after a controversy arose when Bush gave a news conference at the same moment the first U.S. casualties were returning to Dover the day after the U.S. invasion of Panama in 1989, and three television networks carried the events live on split screen, with Bush appearing at one point to joke while on the opposite screen the solemn ceremony unfolded.
http://articles.latimes.com/2009/feb/17/nation/na-dover17?s=g&n=n&m=Broad&rd=www.google.ca&tnid=1&sessid=7f66481cb8724abc346d38591bb11a7d58ad8eae&uuid=474b052b39acc85ba9143b3c6e781e4dbd164c3d&pgtp=article&eagi=&cat=news+%26+current+events&page_type=article&exci=2009_02_17_nation_na-dover17&pg=1


http://www.gwu.edu/~nsarchiv/NSAEBB/NSAEBB152/