Binary package “alevt” in ubuntu bionic

X11 Teletext/Videotext browser

 AleVT is an X11 program for browsing and searching Teletext/Videotext
 pages received by a compatible decoder (at the moment, bttv).
 Features include:
   * Multiple windows
   * Page cache
   * Regular expression searching
   * Built-in manual
 Additional command line utilities can
   * receive the time from Teletext/Videotext
   * capture pages and write them to disk
 Teletext/Videotext is used by TV channels to transmit textual
 information pages (it's transmitted via non-visible scan lines).