hi everyone new to this but wondereing if anyone can help me i have been give a grundig colour tv w70-2030 today and it works fine apart from the picture is wobble and wavey sounds fine colur fine just every channel has this wobble more so at the sides of the picture and really bad when something fast is happeing on a tv show or film so if any one has got any advice or can help to identifie and correct this problem i would be very very greatfull as its starting to crack me up not being able to watch the tv thanks