Sean Lock has spent soooo much time away from 8 out of 10 cats does countdown and is regularly covered for by guest captains. In the last 2 series he has rarely appeared. However, the very last episode he appeared in he had a shaved head and looked much thinner. I had to google at the time if was seriously ill and perhaps battling cancer.
This is morning when I first saw the breaking news at the bottom of the webpage I picked up on the words Comedian, Sean and the age and immediately thought I may have been right after all about potential illness................then I read it properly!!