Most TV's marketed in N. America show NTSC only. Most DVD players marketed in N. America play area 1 (NTSC) only, but one can buy, like I did, multi-format, region-free players that play any standard and translate it to whatever your TV accepts. Mine even upscales to 1080i (High Definition) which my TV is.
Europe and the Middle East are, I'm sure, more ahead of the game in marketing multi-standard units, but from what I see advertised online in, for instance, British stores, most TV's there are PAL only, so one would need not only a PAL DVD player but a dual standard one in order to play N. American DVD's which are all NTSC.
I remember when PAL colour first came out in the U.K. and how wonderfully sharp it was compared with the NTSC tv's I'd seen in N. America. Now we have High Definition which is superb, so we actually get better pictures than you guys.
It's a pity that different standards were adopted but there you go, there are ways and means around it.
See
World TV Standards.
Basically.....
NTSC: 525 horizontal lines
Pal: 625 horizontal lines
NTSC Hi-Def: 1080 horizontal lines = my TV.