I came to this site because it seemed like the perfect system to answer my question...

I clicked "Advanced Search" which sounded perfect for what I wanted....

And it even had a button for "And" which looked perfect, I just have to change that to "AND NOT" or "Minus" or "Difference" or something....

But no.

I want to find all the programs available in Country A that are not available in Country B.

I also want to know all the programs that have additional seasons available in Country A compared to Country B.