As for the title, I dont know about in the US but in the UK national networks aren't willing to pay enough money to air the fights. Top boxer's demand more money nowadays than they did in the past, the same as every sport, only the networks dont think they will recoup the money they pay out.

Even though I thought the few fights they did show over the past few years did pretty good numbers with little to no promotion . Maybe it wasn't enough for them to feel it was worth while to line their pockets.