The one-minute spot, introduced a week ago, did not appear on television, but on President Bush's campaign Web site.
For $14,000, the Koch campaign bought a one-minute spot just before the first debate, the only one televised in prime time.
Neil Burger, whose résumé until now consisted of a Yale degree and some one-minute spots for MTV, directed.
The first, for Lipton's Brisk Iced Tea, was a one-minute spot that featured him as a claymation figure.
In 1992, the one-minute spot "Aqui Tem" was launched for network-wide use.
Mr. Murdoch said he would give each candidate 10 free one-minute spots on the Fox network to answer 10 public-interest questions derived from a nonpartisan poll of voters.
A cookbook offer, via a "900" number, ends each one-minute spot.
Her net accounts show that absolutely no one has run any of her one-minute spots; her own home station hasn't even been broadcasting them.
"We've got seven more one-minute spots."
The campaign is made up of four one-minute spots intended to improve labor's public image and make workers more willing to support unions in organization drives.