Instruction: Using the product's title, description, features, price, and brand, identify and retrieve the values associated with a specified set of target attributes. Output the extracted values along with their respective sources (e.g., title or feature) indicating where each value was found.

Input:
Product title: VIZIO M420NV 42-inch Class Edge Lit Razor LED LCD HDTV (2010 Model)
Product description: VIZIO's M420NV 42" LED LCD HDTV features full 1080p high-definition resolution with Razor LED backlighting for brilliant clarity in a razor thin design less than 2" (max depth 9.41" with stand). Includes SRS TruVolume and SRS TruSurround HD audio for advanced virtual surround sound, and exceeds Energy StarTM 4.0 guidelines to reduce energy consumption., With only a 1.15" thin profile, the VIZIO M420NV 42" RazorLED LCD HDTV offers razor sharp clarity with 1080p full high definition resolution and a 120Hz refresh rate, delivering sharp, blur free images. This stylish LED backlit LCD HDTV has an aesthetic that captures that hip, cool factor like none other with its round edges and sleek bezel design. Its 100,000:1 dynamic contrast ratio providing deeper blacks and brighter whites with an astounding array of colors that stand out brilliantly adding to the rich detail and deep contrast on this TV. An amazingly slim 1.15" HDTV profile. 120Hz processing for lifelike detail and a blur-free picture. Deep blacks and brighter whites via a 100,000:1 ratio. Razor sharp clarity via full 1080p High-Def resolution., Also included is the digital ambient light sensor ensuring you will always have the best picture and most efficient energy savings by adjusting the brightness based on the lighting conditions of your room. Experience advanced audio technologies such as SRS TruSurround HD with explicit dialog clarity and SRS TruVolume to neutralize the sound in between commercials and your favorite movie or TV programs. Enjoy ultimate connectivity with up to four high definition inputs and take pleasure in knowing this energy efficient LED backlit LCD HDTV exceeds new ENERGY STAR 4.0 guidelines by 30% when turned on and consumes 51% less energy than the 2009 model, conserving our planet's resources while saving you money., VIZIO M420NV 42-inch LED backlit LCD HDTV, detachable base with thumbscrew, VIZIO VUR12 remote (includes 2 AAA batteries), user manual, registration card, quickstart guide, power cord, safety strap., With standard-definition TVs, the rule used to be that viewers would feel comfortable watching a set from a distance of 3 to 6 times the screen size in inches. With HDTV, the resolution is so much better that you can sit closer to a larger TV without noticing the pixels. So with HDTVs, the rule tends to be you can sit anywhere from 1.5 to 3 times the screen size (in inches) for the best experience., If you know the size of the room you have already, where you want to sit, and where your new HDTV should go once you get it, you can figure out the size HDTV you should get.
Product feature: SRS TruVolume and SRS TruSurround HD audio, 100,000 to 1 Dynamic Contrast Ratio, Less than 2" (max depth 9.41" with stand), 1080p HD with Razor LED backlighting, 120Hz refresh rate, 1080p HD with Razor LED backlighting, Less than 2" (max depth 9.41" with stand), 120Hz refresh rate, 100,000 to 1 Dynamic Contrast Ratio, SRS TruVolume and SRS TruSurround HD audio
Product brand: VIZIO
Target attributes: Depth
Answer: attribute: depth
value: None
source: None