I've been trying to something for days and stuck! Need help. I'm trying to manipulate the getloadedproductcollection() method called in list.phtml file in catalog/product. I want to remove the duplicate entries of a product(by name). I tried to apply filters in phtml files but with no success. When looked in the list.php file, couldn't get anything to achieve what I want. Is there any possible way to apply that filter to the product collection on category pages. I tried getSelect()->group('name') as it was mentioned on a question in stackoverflow, but it generated error. Can't do distinct() as it is having no effect. Also tried removeItemByKey(&key) inside foreach loop, it again generated error. Can anyone redirect me to right direction, as it strongly feel, it should be possible in an environment like magento.

P.S.: don't want to delete duplicate products from backend as they are necessity.