The BBC developed its own videotape system in the 1950s.
But they had to record it in one take, since there was no way to edit the tapes. There was no cartridge like VHS, they were on long reels of film.
They reused the tapes, thats why many episodes of the first two doctors are missing.
When Sony U-Matic and Philips LP2000 came out in the late 1960s, they discarded the old tapes, the new formats were cheaper and had editing machines.
The BBC developed its own videotape system in the 1950s. But they had to record it in one take, since there was no way to edit the tapes. There was no cartridge like VHS, they were on long reels of film.
They reused the tapes, thats why many episodes of the first two doctors are missing.
When Sony U-Matic and Philips LP2000 came out in the late 1960s, they discarded the old tapes, the new formats were cheaper and had editing machines.