I believe the video you remember was not a public service
announcement, but was the winner of the Bush in 30 Seconds political
advertising contest sponsored by the MoveOn.org Voter Fund in
2003-2004. The title is "Child's Pay" and it was made by Charlie
Fisher of Denver, Colorado.
It is indeed available on the Internet.
You should be able to see it on the Bush in 30 Seconds website, but at
the moment, it is not working there. There is a page for the video,
but it doesn't show. I will include links in case it works when you
Strangely enough, this link on the same site, which I found with a
Google search, does work:
You can also see the video on the IFILM website if you let them show
you a commercial first.
The Internet Archive website has a video that contains "Child's Pay"
preceded by a longer statement by Charlie Fisher.
Home page for the Bush in 30 Seconds contest
Press release about the winner, January 12, 2004
I had seen the video in 2004 and recognized it from your description.
I hope this is a satisfactory answer to your question. If you need
any further information, please ask for a clarification.