"Nielsen's High Definition Survey shows that HD technology is outpacing content, although a few networks do score high in consumer satisfaction," said Steve McGowan, Nielsen Senior Vice President Client Research Initiatives. "Television owners clearly feel that HD viewing is a more intense experience than standard television and there are early indications that the acquisition of an HD television can, initially at least, stimulate the type of television that is viewed."
The vast majority of users watched sport or movies in HD, with ESPN HD being the most popular sports Channel and HBO HD being the most popular for movies. Discovery HD was the most popular channel for documentaries while music and reality shows had the least HD viewers.
Source:
HDTV Magazine