Nehervia is a series of TVs created and marketed by Theorysonic since April 14, 1986, and it replaces the old TheoryTron television sets. It is available in analog NTSC, PAL,  SECAM, and digital ATSC, ISDB-T, and DVBT markets.


The first Nehervia TV went on sale in the Vlokozu Union on April 14, 1986, it had a cable TV ready, UHF channels, AV output, stereo sound, and sharper quality.

The first flat LCD TV was released in 1994, it was 1.3 meters in length, 40 cm in width and 1.5 meters in 1.5 meters in height, making it the third quarter as tall as an average person.

The first true 16:9 widescreen TV was released in 1996, with digital TV tuners and limited HD support, and 720p high-definition digital TV released in 1999.

On November 15, 2001, Theorysonic launched their smart TV line called Nehervia SuperSmart (now Nehervia Smart). It is the first smart TV technology with internet capabilities, live streaming, social media, etc.

The first TheoryClear LED TV was released in 2007.


High-end/flagship models

Image Model Released Notes
Theorysonic Nehervia N-1 (1986) N-1 April 14, 1986 The first Nehervia-branded TV.
Theorysonic Nehervia N-2 (1988) N-2 April 23, 1988
Theorysonic Nehervia N-2B (1989) N-2B July 19, 1989
Theorysonic Nehervia N-2G (1991) N-2G October 22, 1991
Theorysonic Nehervia N-2S (1992) N-2S May 1, 1992
Theorysonic Nehervia N-3 (1994) N-3 August 29, 1994 First Nehervia LCD TV.
Theorysonic Nehervia N-3E (1996) N-3E June 22, 1996 First 16:9 widescreen television.
Nehervia N-3F N-3F June 1, 1997 First Nehervia TV with digital TV tuners, limited HD support.
Nehervia N-3G N-3G October 29, 1999 First Nehervia digital 720p HDTV.
Nehervia N-4 N-4 June 1, 2001 First Nehervia TV with USB, limited Full HD support.
Nehervia N-4C N-4C September 22, 2003 First Nehervia 1080i Full HDTV with HDMI.
Nehervia N-4E N-4E August 23, 2004 First Nehervia TV with Acura (5.1 channel) audio.
Nehervia N-4S N-4S March 23, 2006
Nehervia N-5 N-5 June 23, 2007 First Nehervia TV with TheoryClear LED display.
Nehervia N-5E N-5E May 23, 2009
Nehervia N-5G N-5G February 22, 2010 Limited 4K Ultra HD support.
Nehervia N-5K N-5K December 11, 2012 First Nehervia 4K Ultra HDTV.
Nehervia N-5S N-5S June 17, 2014 First Nehervia TV with TheoryClear Ultra display.
Nehervia N-5V N-5V January 30, 2015
Nehervia N-5X N-5X April 5, 2016
Nehervia N-6 N-6 August 1, 2016
Nehervia N-6B N-6B March 13, 2017 Current flagship model.

Entry-level/mid-range models

  • N-E1