Promo spot for the SU2C fundraiser which will be aired on all major broadcast networks and many cable channels:
"Two years after an historic fundraising telecast and the start of a groundbreaking grassroots movement, Stand Up To Cancer (SU2C) will return to primetime television on September 10, 2010, at 8PM EST & PST / 7PM CT, with a star-studded appeal to build continuing public support and donations for cutting-edge cancer research that translates at a rapid pace from the laboratory to treatments and technologies that benefit patients."
Read more of the press release at SU2C. I don't think they've announced yet which celebs will be involved during the telecast but Katie Couric, Diane Sawyer and Brian Williams will be co-hosting the event.