Ty-Phoo

An advertisement for Ty-Phoo was featured on the side of a bus in London, 2069. (COMIC: The Big Tip-Off!)

Behind the scenes
In the real world, Typhoo is a brand of tea in the United Kingdom, and was launched in 1903.

In 1976, the real world Typhoo Tea offered the promotional book The Amazing World of Doctor Who, which contained reprints of several stories - 4 Doctor Who Annual 1976 stories, and one TV Century 21 Daleks comic - along with 2 exclusive stories.