Here are some highlights from last week's earnings coverage from BloggingStocks:

• CBS Corp. (NYSE: CBS) reported that Q3 revenue was flat while earnings and cash flow declined.
• Clorox Co. (NYSE: CLX) reported better-than-expected Q1 earnings, helped by healthy gross margins.
• Comcast Corp. (NASDAQ: CMCSA) posted better-than-expected Q3 earnings with modest revenue growth.
• Dean Foods Co. (NYSE: DF) Q3 revenue missed estimates but earnings came in better than expected.
• Expeditors International of Washington Inc. (NASDAQ: EXPD) traded lower after its Q3 earnings miss.
• Garmin Ltd. (NASDAQ: GRMN) beat earnings estimates in the week after the Google Navigation launch.

MOST NOTEWORTHY: Overseas Shipholding, Tenet Healthcare and Luxottica were today's noteworthy upgrades:

• Bear upgraded Overseas Shipholding Group (NYSE: OSG) to Outperform from Peer Perform following its Q4 results, citing seasonal strength.
  
• Tenet Healthcare (NYSE: THC) was upgraded to Hold from Underperform at Jefferies after quarterly operating trends showed signs of stabilization.
  
• Goldman raised Luxottica Group (NYSE: LUX) to Buy from Neutral and added shares to their Conviction Buy List as they find the valuation attractive at current levels.

OTHER UPGRADES:

• UBS raised Telefonica (NYSE: TEF) to Buy from Neutral.
  
• Goldman added El Paso Pipeline Partners (NYSE: EPB) to its Conviction Buy List.
  
• Royal Ahold (OTC: AHONY) was upgraded to Buy from Neutral at Merrill Lynch.