Panasonic dmr ex85 freeview prob

This is a problem with the video synchronizing circuits in your television set of cable box set-up. Something is causing a timing error in the signal synchronizing. this will cause a loss of control of the video content and the jumpy picture situation. This problem can be caused by bad cable connections causing line loss distortion, disturbing the synchronizing circuits lock on the signal content. You should try moving your cables around when your are having the problem and see if they are injecting noise on the input cable causing the loss of signal lock. It could also be a problem with overheating in the components of video circuits causing a disruption of normal function of the circuit.The way to test these problems is to check the connections of all the cable connections to the television signal input source. If this is not the problem it may be the cable box itself having trouble with overheating and losing it control of the synchronizing of the signal, between the television and the cable. You can try putting cooling fans or some source of cooling air on the units and see if this clears up the problem.If it does, then you need to use better ventilation in your set -up. Allowing the components more air circulation to cool off with, and avoiding the overheating problem causing the component error.If this doe's not solve your problem,have you cable box switched or tested on another television to see if you get the same problems.If you do then get a new cable box. If not you may have to have your television checked out for problems with the video input circuits.I hope this has helped you with your problem.