The snag was that in transit it had been dropped, cracking a bit of casing off at the side. When plugged in, it did work fine, all channels perfect and crystal clear sound. Great, so i phoned the supplier, got him to refund me £60 off the price, got some super glue out and had both a fully working and very good value TV. For about 6 months. Recently, more and more often, it starts gving out a high pitched noise. THis can be cured by hitting it or turning it off and on again a few times. I am pretty sure it is not signal related as i have both analogue, digital and dvd and the telly will hum for all of them!
I have a worrying theory that things that can be temporally fixed by being hit or turned on and off generally dont get better by themselves, they get worse. I have to say this noise is not unknown to me, i think that i have heard different tvs that do the same thing, so now i am wandering if anyone else knows what it is that has 'gone' or is 'going' in my telly and if it can be replaced/ bashed or soldered in to submission.
I look forward to any advice. I am however aware of my ebay related faults and wont do it again.