I have a Panasonic TH-42 PW5 ( about 7 years old) currently connected to a virgin media digital box which sends the signal through some sort of upgrade box that i bought at the same time into the p.c. input on the screen ,this is an improvement over utilising the a.v. input coming from my old sony strb 1080 a.v. receiver. But i was wondering if after 7 years there was something out there that could improve the quality of the picture , I am still happy with the quality of the picture when playing d.v.d`s through the component connections . Any suggestions would be most welcome.