7 million people got a BBC news 'Breaking News' push update on their phone the next day with "Sunak accused of lying about tax" so approx 2 million more than saw the debate
TV is so last century :) and newspaper headlines? LOL
edit - The Guardian did a bit on it as it's the new battleground
Yes, but there will be many tens of thousands of people who watched the debate, who will not hear or read the updated story.