Panasonic TX-P42GT20B review

Panasonic takes 3D plasma to a smaller level, and throws in its first 2D to 3D upscaling

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Panasonic tx p42gt20

The P42GT20 starts out with more of a whimper than a bang, thanks to a characteristically dull design. But tucked within that uninspiring chassis are plenty of tricks to keep a cinephile happy.

The set's connections are plentiful in both AV and multimedia terms, and include DLNA and online support. The set is also fully endorsed by both THX and the ISF, on account both of its potential image quality and the reasonably extensive suite of picture adjustments it carries.

Where the P42GT20 really deserves to attract buying attention, though, is with its 3D performance. It does a much better job of suppressing dreaded crosstalk noise than most LCD TVs, thereby becoming, almost by default, one of the most outstanding 3D TVs available.

One or two issues with 2D viewing suggest that you should consider spending more on Panasonic's superior P42VT20 if you can afford it, but this is undoubtedly another superb plasma that underlines the technology's current 3D advantage.

We liked:

The ability of Panasonic's 3D plasma sets to keep a firm lid on crosstalk noise continues to shine through with the P42GT20. The set also has plenty of black level talents and looks great with hi-def 2D material. The level of connectivity and multimedia support is also good, as is its carriage of both Freeview HD and Freesat HD and it's got a decent suite of calibration aids.

We disliked:

Standard-definition pictures suffer a few colour tone issues and some dot noise during camera pans and 3D pictures don't look as bright and colourful as they can on LCD TVs. The types of USB HDDs supported for video recording are very limited and there's room for improvement with the set's 3D and EPG interfaces. Finally, the price will start to look a bit high if Panasonic withdraws its promotion of bundling two pairs of glasses free with the P42GT20.


There's no doubt that the P42GT20 marks a definite step down in quality from the sensational P42VT20. So much so where standard definition is concerned, at least, that the extra £300 for the higher-spec model is we'll worth finding if standard def material still takes up plenty of your viewing time.

If £1,500 is definitely the top end of what you can afford, however, then there's also no doubt that the P42GT20 produces the finest 3D performance yet seen at that price level, as well as a very good hi-def 2D performance.

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Tech Specs

Product TypePlasma TV
Scan Format1080p
Standard Refresh Rate50 Hz
Digital TunerDVB-S2, DVB-T (MPEG4)
Analog TunerPAL
Video Signal StandardHDTV 1080p
Number of HDMI Ports4
Number of SCART Interfaces2
Product FamilyViera
3D Type3D
Brand NamePanasonic
Screen Size106.7 cm (42")
Aspect Ratio16:9
Ethernet TechnologyEthernet
Weight with Stand (Approximate)23.50 kg
Dynamic Contrast Ratio5,000,000:1
RMS Output Power20 W
Electronic Program GuideYes
DLNA CertifiedYes
Digital Audio OutputYes
Height with Stand693 mm
Width with Stand1029 mm
Depth with Stand308 mm
Number of Common Interface1
Composite VideoYes
Component VideoYes
Teletext Memory1000
3D TechnologyShutter
3D ConversionYes
USB RecordingYes
3D Glasses RequiredYes
Height654 mm
Width1029 mm
Depth82 mm
Sound SystemDolby Digital Plus, Virtual Surround Sound
Maximum Resolution1920 x 1080
FeaturesMedia Player, PC Streaming, Picture and Text (PAT), Child Lock, Sleep Timer, Web Content Access, Teletext
Product ModelTX-P42GT20B
Product NameViera TX-P42GT20B Plasma TV
Product LineViera
Manufacturer Part NumberTXP42GT20B
Manufacturer Website Address
Marketing Information

FULL HD 3D makes you feel as if you'd stepped out of your living room and into the world on the screen. The viewing experience has never been so lifelike and compelling.The technology in which the left-eye and right-eye 3D images are sent to the viewer is the key to 3D image quality. For this, FULL HD 3D uses something called the Frame Sequential technology. A separate high quality image is sent to each eye. This addresses the image quality problems and blurring which is common to previous 3D systems, and creates sharp, crisp 3D images.

Weight (Approximate)20.50 kg