Teletext data is recovered from videotape by
using Alistair Buxton's VHS-Teletext with additional functionality by Jason Robertson.
Viewer is Simon Rawles' Teletext Editor tailored for viewing by Adam Dawes (@adamdawes575)
Usage: type the page number you want using the number keys. Use cursor keys left/right to move through the sub-pages; use cursor keys up/down to move to the next available page.