I am thinking about buying a Blu Ray Player. I have one of the older model 42 in. Samsung 1080i flat screens- It is probably about 6 or 7 years old- so it is not a THIN flat screen, it's a big bulky thing. The TV does support HD TV and in fact, the Hi-Def cable channels look pretty damn sharp. Is it worth it to buy a Blu Ray player and would it matter if it was a Samsung, Sony or PS3?