Some news direct from Tonga:
There are four TV stations in Tonga and two are broadcasting in NTSC and
Two in PAL system format.
Most homes have Multi-system VCRs and sending the tapes in either format
will be able to be played here in Tonga.
… So how do define that on a list …???
Incidentally, that came from the Chief Engineer at Tonga Broacasting Commission.
I got his details from the internet (Go Google!) rang him from many thousands of miles away.
I missed him, though, as the time difference meant it was after hours.
So I sent him an email with a few simple questions, and he promptly and politely replied, giving me all the information I needed.
The world can be a very small and friendly place sometimes.