No I wouldn't. ds is 13 and watches it but I don't actually like him watching it. dd is 3 and started coming out with "yeah but no but " etc and "computer says no" thanks to ds.
dh and I went to see some daft programme being recorded for Sky 1 last year and it was patently for over 18's. About half way through. 2 young lads got up to ask a question and the compere asked their age. Turns out they were 14 and were there with their drama teacher who'd taken them for the experience of watching a live show. Needless to say, they were asked to leave.
I'm surprised they are allowing a 9 year old to attend