Congratulations, Denon. You were founded in 1910 by the American-born entrepreneur Frederick Whitney Horn as the Japan Recorders Corporation, making records and gramphones. Since then you've celebrated many technological firsts, become the number one brand in surround receivers, and been adopted into the D&M Holdings family. Now you're 100 years old, a claim few consumer electronics companies can make.

Want more high-def choices on satellite? Both of the major satellite TV providers are adding HD channels, and DirecTV's 3D roster is now up to four channels.

Not all 3DTVs are flat panels. Mitsubishi, whose DLP rear-projection sets were an early vehicle for 3D, plans to introduce new fourth-gen models and will also offer 3D in the form of edge-lit LED LCD displays.

In an unusual departure from the current 3DTV marketing frenzy, Samsung has issued a health warning about possible side effects of 3D on certain viewers.