You do realize that even though it’s largely the same company the network has to PAY for the rights to air these shows. Different shows, even different versions of the same show, have different costs attached to them because specific profit participants differ.
Ratings, such as they are, are inconsequential, and BUZZR’s distribution and reach has diminished over time.
Fremantle’s mandate to irs management is to come as close to making money as possible.
Therefore, fewer episodes at a time are licensed from cheaper series.
It’s quite likely the titles you’re “clamoring” for simply aren’t worth the trouble or the expense.