I really don't know what is currently on market. Still use my old Pinnacle PCTV, which is very good. It is useless for instance in Windows 7 (no driver, with intention).
And SW for capturing is at least so much important as good card.
Maybe today is best to get some USB capture card. Some known brand is recommended - you will get better HW and much better SW.
Famous Schrodinger's cat hypothetical experiment says that cat is dead or alive until we open box and see condition of poor animal, which deserved better logic. Cat is always in some certain state - regardless from is observer able or not to see what the state is.