I don't have a list of differences for each model worldwide, as they vary by region.
Your best bet would be to contact a local retail salesperson in your region. They should be able to assist with explaining the differences.
If you have Internet@TV or Samsung Apps in your region, the 2011 models have some new features. But that feature is not available in every region.
hello! I am from India, I want to buy a 32" TV, so I have decided to buy Samsung 32C5000 model but the problem is that new upgraded 2011 model 32D5500 has been launched in US and other countries.what is major differences betwen these models. Should I wait for 32D5500 or buy the 2010 model.