Mitsubishi recently introduced two new flat panel televisions with a integrated sound panel to meet the demand for surround sound in limited space settings. These new Mitsubishi Premium Flat Panel TVs with Integrated Sound Projector are the LT-46149 and LT-52149, pricing at around $3,400 and $3,700, respectively.

The Mitsubishi Premium Flat Panel TVs with Integrated Sound Projector come in 46- and 52-inch screen sizes and have built-in a a 16-speaker array that creates a 5.1 channel sound field. These speakers are managed by an “advanced algorithm” to generate this sound field and come with a graphical user interface to help consumers setup their room setting.

VIZIO, in addition to the new XVT series flat panels it unveiled, also rolled out a few new more budget focused plasmas. These are the VP422 and VP322, priced at around $800 and $600, respectively.

The VIZIO 42-inch VP422 and 32-inch VP322 are highlighted by VIZIO as offering 30,000:1 contrast ratio, longer life and increased brightness. Both models offer 720p native resolution with “enhanced picture controls, multiple color temperature settings and independent Red/Green/Blue adjustment” to make video performance reportedly improved.

We haven’t heard from cheap flat panel CE company VIZIO much since CES earlier this year. The company is back though in the news today with some new HDTVs, priced at between around $1,500 and $1,900.

The new models in the company’s XVT series are the SV420XVT, SV47XVT and VP505XVT. Key features include Silicon Optix REON HQV processing, 30,000:1 contrast Ratio, 1200 nits brightness and 5.1 virtual surround sound. You can get the full scoop on these new flat panel HDTVs after the jump via the full press release.

JVC lately joined the ranks of those offering the “world’s thinnest” LCD televisions for this or that reason. These new models are the LT-42SL89 and JVC LT-46SL89, priced at around $1,900 and $2,400, respectively.

These new JVC LCDs are being marketed as the “world’s thinnest LCD TVs with built-in tuners,” featuring cabinets which measure 1.5-inches deep across most of it. Maximum depth is said to be 2.9-inches at the panel’s center. Screen sizes include 42- and 46-inches.

Sony topped off its announcements yesterday with word it was bringing new content to its BRAVIA Internet Video Link service. Chief among these is a partnership with popular video Web site YouTube.

Sony said its BRAVIA Internet Video Link device will now let people have access to millions of YouTube videos through connected BRAVIA LCD flat-panels at no additional charge. Models supporting this device include select 2007 and 2008 flat panels.