Dogged Blog has a nice piece that dissects the discredited Paul Cameron "Same Sex marriage" study that was cited on the Daily Show episode as trying to pass of as legitimate research.
Randall Ellis of the Lesbian/Gay Rights Lobby of Texas was invited to respond, which he did, pointing out that no reputable research backed up this claim. Cut away to Stewart, who concurred, referring to the "study's" author as a "knucklehead" and mentioning the "research" was comprised of an Internet search and had been discredited. read on