This American Lingo TV game looks very similar. I think Wordle's hard mode is the same.
Well it's daytime TV quiz show, so no reason you would have heard of it. The first rounds are the same as wordle. See for yourself: https://m.youtube.com/watch?v=O5O7ZCvpItY
Secondly, everyone keeps mentioning (repeating?...) about this famous TV show in the UK; I have never heard of it until december. Reading the gameplay of the show on Wikipedia.... it sounds like an almost entirely different game, aside from the fact it (sometimes!) involves a 5 letter word, and you have to pick letters. Mastermind (the game), is so much closer
Did you actually see the tv show?