User blog comment:Peteparker/Agents of Shield is headed to the UK/@comment-5350299-20130822152840/@comment-3317214-20130824001936

Commercial, non-commercial, UK, everywhere else. All channels base what they air on their ratings.

Perhaps you think that the US base their airings on ratings more because we tend to hear about a lot more shows from the US being cancelled. That's probably because the US make more TV shows.

Anyway, you wanted proof: