I recently started looking at buying some DVDs (Mainly series of TV programs). Pretty simple so far.

I live in the UK and we are Region 2 here for DVDs and I believe our television format is PAL.

Getting back to the question, I noticed that while many of the series were available in Region 2 format (and presumably PAL), some of them are only available as Region 1 - NTSC (which are the standards used for North America)....