LG 42LD550 1080p 120Hz LCD HDTV features NetCast Entertainment Access (WiFi ready); 150,000:1 dynamic contrast ratio; USB Video; DLNA and Wireless 1080p ready technology.  Connectivity includes 4 HDMI input and PC input.  LG 42LD550 is one of the best selling LCD TVs on amazon.  According to Amazon customers, LG 42LD550 has excellent picture quality.

Other key features from the manufacturer’s description:

NetCast™ Entertainment Access brings the best Internet services direct to your TV—no computer required. Instantly access movies and TV shows, news and weather and the world’s largest library of HD movies in 1080p.

TruMotion 120Hz technology lets you see sports, video games and high-speed action with virtually no motion blur. Now your TV can keep up with your fast- moving entertainment.

Wireless 1080p Connectivity lets you cut loose from messy wires and still get a stunning Full HD picture. Disclaimer: Wireless media kit required and sold separately.

Picture Wizard: Provides consumers with an easy-to-use seven-step calibration process that allows them to change picture settings without hiring an expert.

Intelligent Sensor: Automatically calibrates and optimizes brightness, contrast, white balance and color, based on the brightness and color temperature of lighting in the room – thereby saving on energy output in most circumstances.

Clear Voice II: An enhancement to Clear Voice, this feature customizes volume settings by 12 distinct voice zoom levels without diminishing other surrounding sounds, helping ensure consumers don’t miss a single line of dialogue during action sequences.

AV Mode II: Includes three AV modes preset to optimize picture and sound settings based on Cinema, Sports or Game content, which can be easily set with the remote control.

For an overview of the best LCD TV, LED TV, read here. For the best 40-inch, 42 inch LCD TV read here.