9 / PRNewswire-USNewswire / -- Since 1998 , Saturn retailers nationwide have held more than 1,900 community donor drives , most on or near Valentine 's Day , in conjunction with local blood center partners as part of Saturn National Donor Day . One of America 's largest annual community-wide one-day donor drives , the launch will be hosted by Cavender 's Saturn of San Antonio and the South Texas Blood and Tissue Center .