alevt software package provides X11 Teletext/Videotext browser, you can install in your Ubuntu 16.04 LTS (Xenial Xerus) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install alevt
alevt is installed in your system.
Make ensure the alevt package were installed using the commands given below,
$ sudo dpkg-query -l | grep alevt *
You will get with alevt package name, version, architecture and description in a table
| Distro | Ubuntu 16 04 lts xenial xerus |
| Section | X Window System software |
| Package | alevt |
| Version | 1:1.6.2-5.1 |
| Description | X11 Teletext/Videotext browser |
| Sub Section | X22 |