He's talking about 50Hz and 60Hz; the standard of PAL is 50Hz which does not work on NTSC TVs. The great majority of PAL TVs come with support for PAL60 which is also compatible with NTSC - this works the other way as well since PAL60 games will work on NTSC systems.
Video contains footage from both versions.
I've been playing this on PC for a couple of weeks now and I freaking love it... so much so that I went out and bought the DS version as well. I am a little disappointed with the lack of certain complexities that are present in the PC version, namely...
Haven't played the DS version, but on PC this is a very faithful representation of the original Blood Bowl board game. And just to be a jerk and correct all you people calling 40k and Orks - this is fantasy Warhammer and they are Orcs.