Back in 2008, just one third of homes in the United States had a HDTV set.
In the five years since, however, the HDTV has become ubiquitous. In fact, 77 percent of households in the United States had a HDTV in 2013 in comparison to just seven percent in 2004. Furthermore, an impressive 46 percent of homes now boast multiple HDTVs.
You will find more statistics at Statista