Hmm, I didn't realize it had been split in three instead of two. Looking at the Wikipedia page it seems like the only property of any real note that they own is Cops. The history of sales rebrands and acquisitions is convoluted, but the simplified version seems to be Fox corp spun off their original assets into two companies, 21st Century Fox and News Corp, with all the entertainment properties ending up in the former, and Fox News and a few other misc things ending up in the later. Then Disney acquired 21st Century Fox, sliced it up, spun the bits they didn't want off as Fox Entertainment, and rebranded all the pieces they wanted to keep to remove the name Fox from them.