Later in 1982, Sony released their first model - the FD-200, which was introduced as “Flat TV” later renamed after the nickname Watchman, a play on the word Walkman.
Since the switch-over to digital broadcasting, handheld TVs have reduced in size and improved in quality.
These devices often have stereo 1⁄8 inch (3.5 mm) phono plugs for composite video-analog mono audio relay to serve them as composite monitors; also, some models have mono 3.5 mm jacks for the broadcast signal that is usually relayed via F connector or Belling-Lee connector on standard television models.
Some handheld televisions also double as portable DVD players and USB personal video recorders.
Portable televisions cannot fit in a pocket, but often run on batteries and include a cigarette lighter receptacle plug.