Apparently, in this day and age, PAL/SECAM/NTSC standards mean nothing, IIRC, due to recent technological inventions center around Blu-Ray and DTV/HDTV.
Sorry, but you are completely wrong. There is still no universal broadcast standard, so differing TV standards are still a way of life for new shows (and older shows produced on NTSC or PAL tape would still be "locked" into their original standards).
Thankfully, 24fps was included in the blu-ray spec for films, so at least in "PAL" countries, they can finally watch films at the correct speed (with the 4% PAL speedup not being needed for BR format).
With shows shot/produced on HD video, however, the same incompatibilities that existed wtih NTSC and PAL are still with us.
You see, the US HD broadcast standard is 1080i/60, meaning 1080 pixels (interlaced) at 60hz. In "PAL regions" (like the UK), the HD standard is 1080i/50. While it's the same number of pixels, they're transmitted at 50hz. Unless someone has a TV and a player that can handle both the 50 and 60hz frame rates, they are incompatible with each other. There are many BBC blu-rays that were imported from the UK (like the Region B releases of Being Human and Planet Earth) that are encoded at 1080i/50, and are therefore incompatible with a large range of US blu-ray players (perhaps most notably, the PS3).
While practically every region outside the USA has full compatibility (50/60hz and 24fps) written into their blu-ray specifications, the US (in their "infinite wisdom") made 50hz compatibility optional, so while some players will convert 50hz content to 60 (to work with US TVs), others will only output it at its native framerate (requiring a 50hz-capable TV) or worse, won't output 50hz content at all. There are whole threads on various A/V forums devoted to which US players are compatible (or not) with 1080i/50 and/or PAL 540i content.
So, yes, the whole PAL/NTSC incompatibility thing is still very much an issue.