It's that time of year again. My book Practical Home Theater: A Guide to Video and Audio Systems has been reborn in what has become an annual tradition. You can distinguish the new edition by its yellow cover or its ISBN number: 9781932732115. This edition is number nine and its cover date (printed on the spine) is 2010. As always, I've gone over it obsessively, rooting out stale information and freshening up as much as possible. On the video side, LED-backlit LCD HDTV and the conclusion of the DTV transition. On the audio side, this is the first edition to discuss the new height-enhanced surround modes, Audyssey DSX and Dolby Pro Logic IIz. It goes into detail about the latest version of HDMI, 1.4, and separates HDMI-cable fact from hype. And it delves into the exotic amplifier topologies that are finding their way into receivers, including the new Class D, Class G, and Class H. I remain committed to the annual update and have already stripped the book's giant text file so I can begin work on the next edition. It never ends. Finally, please note that the book is sold mainly online via Amazon and other booksellers in the U.S., U.K., and Europe. But you can special-order it from a brick-and-mortar bookstore.

Hollywood is at it again. The movie studios and their trade association are lobbying the Federal Communications Commission for power to cripple the component video interface--the only one available on millions of early-generation HDTVs.

The price differential between Blu-ray and DVD continues to shrink, according to the latest studies.

The high-end audio industry mourned as Jim Thiel, who cofounded the speaker brand that bears his name, died last week. He was 61.