Betamax

Betamax was a type of Human videocassette tape recording format. By the 21st century it was considered obsolete.

In 1982, a Betamax video recorder fell through the Rift to May 2008. It was picked up by Torchwood Three and stored in the vaults.

When Harold had to get a message to Jack Harkness in 2009 about the Hokrala Corp, he made a Betamax recording. (TWN: The Undertaker's Gift)