LOS ANGELES (MarketWatch) -- One may prove an anomaly, while two could be a run of bad luck. But three just might translate into a dubious trend when it comes to ratings on Academy Awards broadcasts. If the past two years is any indication, it won't be good for Oscar viewership and may cut into future revenue. For 2005 and 2006, household share for the Academy Awards has fallen below the critical 40% level and has been under that threshold for three of the last four years. In years past, Oscar ratings traditionally have captured more than 40% of all...