Sony KV-20S40 stuck on channel fix

I have just got a kv-20s43 and your best bet is to try to restore settings, here, To reset TV to factory settings, turn the TV on, Then, while pressing the reset button on the remote control, press POWER on the TV. The TV will turn itself off, then back on, the original settings wiill be restored... definition: ch. fix- 2-6: Select when you want to control all channel selection through a cable box. Select the appropriate channel(usually 3 or 4) and use the cable box's remote control for channel selection. VIDEO: select from available inputs when you have connected video equipment and you want your TV fixed to it.