Very detailed description courtesy of YT posting - the reason I'm sifting this up:
The Spot: A title card reads "The Debate." We fade in on a couple standing in their kitchen, arguing about whether to buy a new house. The wife is the aggressor; the husband has his doubts. "Suzanne researched this," says the wife in exasperation. As we're wondering who Suzanne is, the ad cuts to an image of the couple's kitchen telephone. "This listing is special, John," says the voice of their real estate agent over the speakerphone. "You guys can do this." The husband caves. "This is awesome," says the wife. We see a picture of the agent's Century 21 business card.

"The Debate": It's terrifying. The problem lies in the performances. That beleaguered husband, dough-faced and weary, seems highly sympathetic as he expresses a few doubts about this major life decision. Meanwhile, the wife (who looks like a more hostile Mary Louise Parker—though she lacks MLP's patented bone-dry delivery) just knits her eyebrows at the guy like he's unfathomably dense. Later, she jabs him with an accusatory "What?!"—her eyes wide and wild, her neck muscles flexed, her head twitching in disbelief at what a ninny her husband's turned out to be.

The capper comes when their real estate agent, who we discover has been listening in on what should be a private and delicate moment, takes sides with the wife and thereby crumbles the husband's defenses. Don't listen to her, John. Of course your agent wants you to buy a house you can't afford—she gets a bigger commission!