Just 'off the top of my head':
The 'CIA selling crack cocaine in the inner cities' 'scandal' (later proved to be total fabrication).
The 'Tailhook' 'scandal' (accusers eventually found unable to actually ID their 'assailants', but that didn't let a couple of female democratic congresswomen/senators/etc. try to ruin the retirement of one of the U.S.A.'s greatest Admirals - because he was a Naval Aviator and spent ~1 hour at Tailhook that year). My favorite was when Coughlin ID'd her 'primary assailant' by facial recognition from a 'chest-up' photo, then somehow thought he was '5'10" tall, average build' when he was actually 6'5" tall and built like an NFL player. The media played it in classic form however - never let the truth get in the way of a good bashing of the U.S. military.
The massively biased coverage of the Danny Ortega/Sandinista fiasco (Sandinistas taking lefty news crews to 'massacres of Priests...who were actually Sandinista terrorists KIA, then moved and dressed up in Priests' robes, etc. - not to mention the almost total lack of reporting about how Ortega failed to get elected once there was an actual vote)
The news crews catching every pro-Osama rally in Pakistan immediately after 11SEP01, and somehow managing to miss every single counter-rally - some of which took place less than a block away and ended up as full-scale brawls between the 2 rallies. Let me get to a scanner in a month or two and I'll post some pictures of those.
General stateside coverage of the most recent war in Iraq.
Civilian casualties occuring when U.S. forces are involved in combat - have you ever noticed that they go with the highest initial casualty report...then never report on the matter again? In Afghanistan the total reported by CNN and parroted by every other major outlet was 7000+. Within 3 months it was known that this was off by almost a factor of 10. Why no update or correction?
The 'Jenin massacre'. A great example of liberal (media) hatred of Israel. The report issued by the PA - stating that "no Palestinian civilians were killed in Jenin" - was a 2 sentence blurb some months after the initial reports of the 'massacre'. The sweeping under the rug of Arafat's direct involvement with the Karine-A is another good example.
Reuters putting quotes around terrorist (i.e., "14 Israelis die in 'terrorist' attack when dumb-prettythanged Palestinian kid blows himself up so Hussein can buy Daddy a new Isuzu"), as if to add their own 'alleged' to the label of terrorist.
The moral equivalence that is constantly assigned to the deliberate targeting of innocent Israeli civilians by terrorists as compared to civilian casualties caused by Israeli military strikes that target specific terrorists. "We didn't mean to kill any civilians" is by no means an absolute defense to any potential accusations. It is also by no means as morally reprehensible as saying "We target Moms and little Kids because they can't fight back and we want to cause terror amongst the civilian populace".
I could go on. I'd like to go get some breakfast though.

Far worse than any liberal slant however is the '24/7 coverage' addiction which probably pushes them to allude to scandal, conspiracy, etc. at the slightest hint of the wildest possible collusion of events - because they have to have something new to say every hour. When all else fails, they reword what they've said for the past 6 hours and say "Don't miss our next guest! 'Retired' (they never mention he was sacked by SECDEF for being a political potato of a general, etc.) General So-and-So explains why we are being defeated in Iraq!".
Basically, if you base any opinion off of TV media alone you are a retard. If you base any opinion off of internet media reports without taking the time to read 3, 5, maybe 7 local regional media outlets from the applicable area - using an internet translator - you are a retard. I remember CNN explaining the 'massive Philippino resistance to U.S. troops fighting A-S terrorists in the Philippines'. I knew this was not true due to numerous and varied sources (such as buddies coming home from the region), but the best joke of the hour was reading the reports from the Southernmost towns in the Philippines as opposed to the reports from the North (the ones parroted by CNN). The South was more than ready to have U.S. troops start zapping A-S cells - they had to live with them day to day. The North, mostly insulated by the bulk of the Philippino military, "Didn't see the need for armed U.S. intervention against the terrorists".
Part of it also is that 'bad news sells'. And 'bad news' for Joe the American truck driver is that 'people don't like the U.S.A.'. Once a 'reporter' has 2 or 3 people on record talking about the 'Evil U.S.A.' he's done for the day.
Democrat, Republican, Libertarian, etc. - if you form an opinion on an international news event based solely on U.S. based internet media and U.S. based television media alone you are a clueless retard. You're a tool. You're being told what to think and how to spout it.
Mike/wulfie