Sounds like Just a Minute[1]. You have to speak for one minute on a subject. You may not deviate from the subject (or the English language), repeat yourself (ex

Sounds like Just a Minute[1]. You have to speak for one minute on a subject. You may not deviate from the subject (or the English language), repeat yourself (except the words literally on the card) or hesitate (including umm and ah). There are hundreds of episodes: the original presenter, Nicholas Parsons, held the chair for over 50 years, and it's still going. You can find some on the Internet Archive. While the panelists on national radio are perhaps above average in terms of wit and comedic turns, it's also good fun at home or in the car. And all you need is a timer and a few subjects on cards (literally can be anything). Having to avoid umm and ah is half the game. A well-timed pause for thought between words (but not long enough to be hesitation) may be tolerable, but an umm is an instant handover of the subject to the next player. [1]: https://en.wikipedia.org/wiki/Just_a_Minute https://en.wikipedia.org/wiki/Just_a_Minute