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| Product | Samsung PN51E450 | Panasonic TC-P50U50 | Samsung PN51E550 | Panasonic TC-P50UT50 |
| Price | $525.00 to $529.88 | $1,359.60 | $1,099.99 | $999.00 to $1,658.69 |
| CNET editors' rating | 3.5 stars | 4 stars | 3.5 stars | 4 stars |
| Average user rating | 3 stars | 4 stars | 4.5 stars | 2.5 stars |
| Release date | Info unavailable | February 15, 2012 | Info unavailable | Info unavailable |
| Bottom line | The Samsung E450 series plasma may not be perfect, but you won't find another TV that performs this well for this low a price. | A low price, excellent picture quality, and bare-bones features make the Panasonic TC-PU50 series a superb entry-level plasma TV value. | While not quite the best in its class, the Samsung PNE550 plasma still merits a look with its very good picture quality, sophisticated Smart TV platform, and attractive price. | The Panasonic TC-P50UT50 plasma TV nearly matches the world-beating picture quality of the ST50 series, at an even lower price. |
| Product type | Plasma | Plasma TV | Plasma | Plasma TV |
| Diagonal size | 51 in | 50 in | 51 in | 50 in |
| Technology | Plasma (PDP) | Info unavailable | Plasma (PDP) | Plasma (PDP) |
| Resolution | 1024 x 768 | 1920 x 1080 | 1920 x 1080 | 1920 x 1080 |
| Display format | 720p | 1080p | 1080p | 1080p |
| TV tuner presence | Yes | Yes | Yes | Yes |
| Digital TV tuner | ATSC QAM | ATSC QAM | Info unavailable | ATSC QAM |
| Speaker(s) | 2 x Right/left channel speaker - Built-in - 10 Watt | Right/left channel speaker - Built-in - 10 Watt | 2 x Main channel speaker - Built-in - 10 Watt | 2 x Right/left channel speaker - Built-in - 10 Watt |
| Sound output mode | Stereo | Info unavailable | Stereo | Stereo |
| Surround mode | Yes | Yes | Yes | Yes |
| Sound effects | SRS TheaterSound | Info unavailable | SRS TheaterSound HD | 3D Sound |
| Total output power | 20 Watt | Info unavailable | 20 Watt | 20 Watt |
| Addtional features | Wide Color Enhancer Plus ConnectShare Movie Slim frame design Auto volume leveler Down Firing + Full Range speaker Eco Sensor Game mode Auto channel search SRS TheaterSound | Audio Return Channel (ARC) | Samsung Smart Content and Signature service Samsung Smart Hub Web browser SRS TheaterSound HD Down Firing + Full Range speaker AllShare Play Anynet+ technology ConnectShare Movie Auto channel search Real Black Filter Wide Color Enhancer Plus Eco Sensor Cinema Smooth | Game mode Audio Return Channel (ARC) DLNA Eco Mode 2D to 3D conversion |
| Input/Output connections | 2 x HDMI input (19 pin HDMI Type A) 1 x Component video input 1 x Composite video input 1 x Digital audio output (optical) (TOSLINK) 1 x USB 2.0 (4 pin USB Type A) | HDMI - Rear 1 x USB 2.0 Composite video / component video input (RCA phono x 3) Audio line-in (Mini-phone stereo 3.5 mm) 1 x (TOSLINK) | 3 x HDMI input (19 pin HDMI Type A) 1 x Component video input 1 x Composite video input 1 x Digital audio output (optical) (TOSLINK) 2 x USB 2.0 (4 pin USB Type A) 1 x Network (RJ-45) 1 x Audio line-in (Mini-phone stereo 3.5 mm) | 2 x HDMI input (19 pin HDMI Type A) - Rear 2 x USB 2.0 (4 pin USB Type A) 1 x Composite video / component video input (RCA phono x 3) 1 x Audio line-in (RCA phono x 2) 1 x Audio line-in (Mini-phone stereo 3.5 mm) 1 x Network (RJ-45) 1 x Digital audio output (optical) (TOSLINK) |
| Video interface | HDMI Component Composite | HDMI Component Composite | HDMI Component Composite | HDMI Component Composite |
| HDMI ports qty | 2 | 2 | 3 | 2 |
| Manufacturer warranty | 1 year warranty | Info unavailable | 1 year warranty | 1 year warranty |
| Dimensions (WxDxH) | 46.9 in x 2.2 in x 27.8 in - Without stand | 46.5 in x 10.5 in x 29.8 in - With stand | 47.2 in x 2.2 in x 28.2 in - Without stand | 46.9 in x 13.2 in x 30.1 in - With stand |
| Weight | 43.2 lbs | 51.8 lbs | 46.5 lbs | 57.3 lbs |
| Refresh rate | Info unavailable | 600 Hz | 600 Hz | 600 Hz |
| Widescreen | Info unavailable | Widescreen | Widescreen | Widescreen |
| HDCP compatible | Info unavailable | Yes | Yes | Yes |
| Full specifications | Full specifications | Full specifications | Full specifications | Full specifications |
| Buying choices | Prices from 3 stores |
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