Before that cynical voice in your head takes control and you swear off Valentine's Day as nothing more than a commercial holiday, tune into CNN this Monday to see a national ad campaign in support of same-sex marriage.

You might even see someone you know.

Throughout the day Feb. 14, a commercial featuring four Oregon couples—two gay, two straight—will air nationwide as the beginning of a series of ads from Freedom to Marry

Basic Rights Oregon developed the 30-second ad, which first aired on Oregon TV stations last summer, and is now part of Freedom to Marry's efforts to legalize same-sex marriage throughout the country. Among the marriage rights effort is an expected ballot initiative in 2012 that would seek to overturn a voter-approved ban on same-sex marriage in Oregon.

Watch the video here: