PBS: Anyone who gets cable TV or satellite in the U.S. has noticed a pronounced trend over the years: their monthly bill keeps going up. Sure, you can get lots of channels, plus HD channels and DVR functions, but those usually cost extra. According to research from Centris (PDF), the average digital cable bill was nearly $75 last year, and the average monthly satellite TV bill was $69. What’s causing those bills to skyrocket? A lack of competition among cable and satellite providers, and the rising costs of programming. Like other traditional media, TV networks (both cable and broadcast) are […]