DVD Cost: depends on a number of factors, including how long the final edit is and how many people are interested (e.g. the show is about 2h 20m raw I think, the bitrate required to get that onto one single-layer DVD would make it poor quality - so its a toss up between a dual-layer DVD and a 2-DVD set). There are sections of nothing but dark stage but probably not 30 minutes/an hours worth.
If lots of people are interested they can be professionally mastered of course!
The last set of DVDs didn't make any profit (they're still available), and we got a reasonable deal on some of the components which we might not get again...
Some of the sound has some problems, so I'm going to try and clean it up (people ignoring the fact that we'd taped off some seats, walking over the tape and hitting microphones etc). We've got a good stereo sound track but it needs patching in places.
I have an edit suitable for a DVD done, it just requires the soundtrack to be fixed. I've also been a bit busy with other things, as you may have noticed ;)
I seriously don't remember any cameras being there. I must have been panicking too much to notice. Never before in my life had I regretted not watching "strictly come dancing". Still, congratulations to Lauren and the team for making it run so smoothly. I can't improvise like Billy can and any hold-ups would have been cripplingly cringe-worthy.