but it was, at worst, a slightly odd feeling, but not painful. I was aware that something was going on inside me
oldudders Same here! Had prostate reduced by two-thirds back to normal size. No pain, no problem!
The camera wasn't HD, but it was hooked up to a monitor suspended above the area of interest so I was able to lie back and watch proceedings, on the monitor, that is!.
Not very interesting really, watching some pink flesh moving about and I might even have dozed off at times as you do watching TV!
Whilst having the usual cup of tea and biscuits afterwards, the surgeon came round and handed me a small coloured photo which he claimed was me!
It was a bit blurry (camera shake?), but to this day I reckon it could have been a file photo he handed out to all his patients. 
Needless to say I haven't had to go back for a second screening, fortunately!
Good Health
OoRoo