Portowatch is a series of portable pocket televisions that come with NTSC, PAL, ATSC, ISDB-T or DVB-T tuners created and marketed by Theorysonic. It is the first pocket handheld TV to have market success.


Theorysonic had developed to watch TV outside the house with handheld TV.


  • Battery-powered handheld TV
  • TV channel scan with FM radio
  • Analog and digital TV tuners

Models Edit

  • PTW-100 (1987)
  • PTW-140 (1988)
  • PTW-200 (1990)

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.