For fans of NCAA basketball, it has been an upset-filled start to March Madness. But there are no surprises in household viewing patterns in the top markets tracked by Nielsen.

Nielsen data over the past six weeks shows that “golf” returned as the most relevant topic to Tiger Woods in online conversations.

With so much anticipation for Tiger’s return to golf, many are speculating about just how high Masters ratings will be.

Olympians Lindsey Vonn (U.S.) and Alexandre Bilodeau (Canada) are the top gold medal buzz winners for their respective countries.

A Nielsen survey asking Olympics viewers about commercials aired during NBC’s primetime Olympic coverage through February 20 shows that six of the ten most liked ads contained an Olympics theme.

In contrast to the Super Bowl, the primetime Winter Olympic TV audience is predominantly female, according to an analysis of primetime Winter Olympic viewership data through February 21.

Nearly 13 percent of viewers tuning in to last week’s Olympic opening ceremonies were also surfing the web, according to data gathered from Nielsen’s TV and Internet convergence panel.

Freestyle skiing, which includes men’s and women’s moguls competition, was the most popular Olympic sport among U.S. TV weekend viewers through February 15, according to a minute-by-minute analysis of viewing conducted by The Nielsen Company.

The Nielsen Company analyzed online discussions among 25 high-profile athletes and medal winners involved in the Winter Olympics and found that American speed skater Apolo Ohno is the most buzzed-about athlete so far.

Nielsen demographic data reveals that significant gains in minority viewership were contributing factors to Sunday’s record audience of 106.5 million Super Bowl viewers.