I think airline people are getting their jockeys in a twist over something which may never affect them. I don't know if they have changed their policy since but when I spent a forthnight with the NTSB in 2001 the only suggestion they had ever made about video cameras related to GA and other light aircraft which did not have FDRs and CVRs and, given the cost of installing them, would never have them. A relatively cheap Videa cam, on the other hand, could be aimed at the main instruments and dials to show what the aircraft was doing. GA crash investigators said this would solve a lot of problems for them and solve crashes more quickly and it became an official recommendation to the FAA somewhere along the line. Didn't see the Sky programme but it would be interesting to know in what context the NTSB guy was asked about video cameras. It could have been in a GA context but perhaps it was edited to make it look as though it were a blanket recommendation for all aircraft.