I will just pop our Remote Control Guide here incase it may be useful. If you have tried all the codes and none have worked, it's best to contact the manufacturer of the TV as they will have all the latest codes, particularly if if it's a brand new TV.
We don't always have all the codes but we do try and keep them up to date when we can.
Let me know how you get on.
Tech fan? Have you read our Digital life blog yet? Check it out