I wish TV's were free! But.. while your here i need some help. I asked about adding a sub to a PL4 but didn't think it was poss. I went to comet today to have a look at some sets and spotted the PL4 in the corner... I had a look around the back of it and spotted 2 phono sockets and a bunch of speaker grip clips. What i want to know is what are they all for? i'm guessing the speaker clips are for the 2 rear speakers but what are the phono's for? are they incase you want to add new front speakers? if so could i run the sub from one of those channels or is it internal or external not both??