TV analyst Digital TV Research has calculated that a strong growth in 2010 has resulted in over half a billion digital TV homes supporting a pay-TV market worth $155 billion.

The analystís Digital TV World Databook shows that about 338 million digital homes were added around the world between 2006 and 2010, driving digital TV household penetration by the end of 2010 to 576 million, 42.5%.

As an indication of just how quickly the region was growing, out of the 338 million digital TV households added between 2006 and 2010, 169 million were in the Asia Pacific region, bringing its total to 218 million. The survey showed that China became the largest digital TV household nation in 2010. However, only Finland was 100% digital.

In terms of platform, there were 203 million digital by the end of 2010.

Pay-TV reached half of the worldís TV households by either digital or analogue by the end of 2010, up from 40% in 2006.

Even though by territory, pay-TV penetration was highest in the Netherlands, 99%, by the end of 201, not surprisingly, China had the most pay- TV subs, 195 million. The USA and, very interestingly, India also had more than 100 million pay-TV subs.

In all this drove the $155 billion in pay-TV revenues with analogue and digital cable generating $76 billion in 2010 alone. However, like other researchers, Digital TV Research observed that cable revenues were flattening and predicted that DTH would overtake them in 2011. IPTV revenues reached US$6 billion in 2010, up from less than US$1 billion in 2006.