[mcrdev]

I wonder also, whether they might look to have the show at a bigger venue, I think the Utilita Arena in Sheffield where the series is now holds something like 13k and demand for it was huge from what I can gather.

It may have a maximum capacity of 13,600, but they were only allowing around 3,000 people into the audience for each recording. The full capacity includes the entire seating and standing on the arena floor, so you'll never get anywhere near those numbers in for this type of event. That said, weren't using the full height of seating, only using the first few rows of the upper tier - so they could have got a lot more audience in if they wanted.

Likewise, they weren't using the extents of the arena floor to the fullest - additional width and length were available but chosen not to be used. As for height - well, hang tough was flipped on it's end and stored vertically above the visible set trusses, so there is some significant height available which doesn't come out on screen.