It's probably more like this: The ratings are the same during the day no matter what we put on, and as long as we paid for the G-T library renewal (and perhaps Fremantle talked them into doing it, if they were only going to renew "MD" and "Feud"), by God, we're going to use it. "Star Search" was the only acquisition in those slots (and a cheap acquisition, most likely) and it may be possible that the originals that aired in those times had been amortized by now in the first place.