>>One more question....what's PAL?

PAL is German for NTSC

Seriously, there are three main TV encoding standards -- NTSC (US), PAL (German/British) and SECAM (French). As an example of the differences, NTSC is 525 lines/60 Hz while the others are 625 lines/50 Hz, and the colour subcarrier encoding is different from one standard to the next.

The rest of the world uses one or more of those standards depending on which adjoining country they get their free TV signals from

M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8