the set is probably 15yrs old.
Receives via Sky +HD box. Not sure if we had the problem before installing that - I think we did.
Only one I can find is going to "settings" on the Sky remote which gives "scart RF1 format" and "RF2 picture format". Tried "4;3", 4:3L" and "16:9" which are only options. Picture still off edge of screen eg cant read all of details on sports channel where teams/scores etc are shown on extreme bottm left.
Sorry for delay - been away.
Model - Sky+HD