Facebook is trying to prove to major television networks that it's home to the best viewership data around — or at the very least, viewership data that's better than Twitter's. According to The Wall Street Journal, Facebook is beginning to deliver reports to ABC, NBC, Fox, CBS, and a small number of other partners about the level of activity their shows are seeing across its entire network, both public and private. The reports will be delivered weekly, and will include aggregated details on how many likes, comments, and shares occur around a given TV episode...