Need some Ultra 4k HD advice
 

Need to upgrade my 40" Sammy LCD


Gonna go 48-50" LED but not sure about Ultra HD. I want to stay ahead of the curve but worry that my older tv shows and DVD's will not look good on the Ultra sets. I have read this before just needing some advice


I not expect Andy Griffith or other DVD' to look great but they do look ok my my basic LCD at the moment