How would I be seeing upper reverse thrust gills below an engine on take off?
Because the aircraft is just airborne, climbing quite steeply, and from the rear you can see the upper surface of the engine pods etc. There's two similar shots - one about 48 minutes into the programme, and another at 56 minutes. If you've still got the recording, perhaps you can tell us at what time your "six engined VC10" appears?
there was something there and it wasn't topsy turvy reversers at the wrong end of the flight .....
Your sarcasm is out of order when a) someone is only trying to help, and b) you're missing the point. The reverse grills (deflector vanes) on the VC10's outer Conway engines are visible at all times, not just when reverse thrust is selected.