How Can I Get The Best Picture Quality On A Samsung Lcd-hdtv 32 Inch?

I just bought a samsung hdtv and i can’t get it to have a very good image quality and i do have dish network (i don’t have HD programing) what can I do to make it look better? and will the DTV change next year will Provide better image quality for my tv?

Whats The Better Tv…magnavox 37″ Lcdhdtv.. Or Phillips 32″ Lcd Hdtv…same Price Which Would U Get

http://www.consumer.philips.com/consumer/catalog/tree/en/us/consumer/tv_gr_us_consumer/consumer__rs_screen_size__r_large/ce/_productId_32PFL5322D_37_US_CONSUMER/_activeTab_specifications/digital_widescreen_flat_TV+32PFL5322D_37?proxybuster=QF2KFYLPAZT5RJ0RMRESHP3HKFSEKI5P
http://magnavox.com/index.cfm?event=main&cat_id=1&subcat_id=3&product=102
the first one is for the phillips the second is for the magnavox