“The new show will only be available in the UK to subscribers to Amazon Prime, the online retailer’s premium service, which costs £79 a year.”
huh??? only available to people in the UK or people in the UK can only get it via Amazon prime?
Noting that this was published in a UK publication, their readers would not be concerned about US viewers.
I gotta believe that the US market for this show is what's funding it, although the Top Gear show was marketed world-wide. This will likely be a world-wide product.