I hope someone out there can help with this. My soon to be father in law has an old Mistubishi rear projection tv. I apologize for not having the model number. It's about 10 years old, no front inputs, 50 inch, Ant A/B and Ext 1 and 2. About a year ago he had a power surge, and now the ext 1 and 2 inputs are locked out. When you select those, it says to enter the 4 digit code to unlock the input. He called mitsubishi and they said they would have to send a service technician to fix it, costing him probably $100 or more dollars. This seems crazy. Is there anyone that might know the codes for this, or how to get the inputs to unlock. Please reply here or email me @ byteme1818@aol.com. If there is any other information you need, please let me know. Thanks in advance for your help.