Is it functional if you can't plug a modern video input into it? I say that having recently ditched a 46" (I think) Sammy plasma for which I used a ten buck hdmi switch to choose the video input I was going to send in through the DVI connector.
I'm reminded of an incredibly old Mitsubishi 35" TV that had S video inputs. The connection was accomplished via two RCA jacks per input. That is, this TV was from a time before the S video connector had been invented! And, being a big Mits, it weighed probably a hundred pounds.
A good answer is easier with a clear question giving the make and model of everything. "The biggest problem in communication is the illusion that it has taken place." -- G. “Bernie” Shaw