I remember when I visited England many years ago, that a lot of their shows run around 40 minutes, that would probably be 30 minutes for us. Maybe the ones we see as an hour, actually ran a bit longer over there. So, we can't put as many commercials in it, in order to air it in only 60 minutes?
I'm probably COMPLETELY offbase.

I have no earthly idea. But, I do think you are correct that our version seems to have more commercials.