Sony kv-a2542u tv manual tune help

hello

Can anyone help.

I have a sony kv-a2542u tv and would like to know can u manually re-tune using the front control panel buttons as i have lost my remote and user manual. I have tried Sony Service Dept but they said tv is too old. Great! (It still works though)

Any help or suggestion would be appreciated. (Please don't suggest buy a new tv, I'm going to keep this one until it dies.)

lbs