Only Connect S20E10 - Harmonics v Bean Farmers

Victoria Coren Mitchell hosts the quiz where knowledge only gets you so far – the vital extra ingredients are logic and lateral thinking.

Undeterred by having been beaten in the missing vowels round last time, the Harmonics are back to take on three devotees of a German card game.

Question: tonsillectomy, Victoria and mergers - what connects all of the above?