Univision
I can't answer all your questions but I know that Univision is putting a big emphasis on their general market numbers, particularly since the February sweeps when they've been measured head-to-head with the major networks. They claim to be #1 in many time slots and demos in NYC, LA, Miami, Dallas, Phoenix, Sacramento, etc. and the 5th most watched network overall in the U.S. Their TV advertising revenue is skyrocketing, while the others are flat or dropping. Univision just announced their 2nd Q financial results and their net was $117 million on revenue of $630 mil. Majority of that income was from TV operations. The World Cup sure didn't hurt ! Also they just agreed to a $12.3 billion private equity buy-out which was one of the largest in U.S. history.
They are about the only growth story in the TV industry. Plenty of room for growth still as I think some advertisers are still waiting to see how they do long-term and to understand their market.