Each of the major set top box (STB) segments, including Cable, Satellite, DTT and IP, faces widely different outlooks, according to In-Stat.

Satellite, the largest of the STB segments, saw 6 percent growth in 2008, bolstered by triple-digit growth in the Asia/Pacific region. Unit growth is relatively steady for 2009 and 2010. The cable STB market grew 8 percent in 2008 to nearly 45 million units. However, growth in 2009 looks to turn negative in the relatively mature market. The nascent IP STB market grew 55 percent in 2008, but such breakneck growth will not continue. With few new telco TV deployments, unit shipments of IP STBs will see only slight increases in 2009 and 2010. Finally, digital terrestrial (DTT) STB units grew an astonishing 200 percent in 2008, driven by HD converter boxes supporting the U.S. analog TV shut off. However, these shipments represented an unsustainable bubble. Growth falls back to 23 percent in 2009 and will contract nearly 30 percent in 2010. Across the STB markets, personal video recorders (PVRs) and a transition to HD are among the major technology drivers. Global PVR unit shipments (across all STB types) exceeded 25 million in 2008, an increase of 14 percent over 2007.