Ok so part is not available and they can't fix it.
They are offering this
Buy Panasonic Viera TX-P42S30B Plasma HD 1080p TV, 42 Inch with Built-in Freeview HD online at JohnLewis.com or £499 to put towards another tv.
With regards to the replacement i can take it for nothing but the warranty just continues till as normal till february.
If i take the £499 and buy a new TV its like buying a new one and i get another 5 year guarantee.
Now at the moment my TV was £1000 and was classed as a very good Plasma when i bought it. Reading the reviews for the TV's where i don't have to put anything too end up with remarks like BUDGET TV, MID RANGE which my Hitatchi at the time of buying wasn't.
I now don't have any money to put towards a TV of its stature in todays market i.e another £1000 TV.
So i feel while they are giving me a "like for like" i still feel i'm being left out of pocket in a way.
I don't what to do now.
Plus even getting a LED for a few extra hundreds means i have to re design my wall as it was built for the Hitatchi and todays 46", 42" & 40" LED TV's are smaller then mine.