This is also posted in reply to a thread above for this model.
You must use the remote control. No tuning is available on TV.
Sony RM-S04B is an available replacement, if you do not have the original at about £15-20.
1. Press and hold down the [White Arrow Up] 'shift' button.
2. While held down press the UHF tuning button (symbol for button is ->).
3. Press + or - to tune up or down the UHF band as required, until the required station is reached.
4. Select a spare Channel Position.
5. Press [Arrow Up] & [UHF Tuning ->] buttons again to store and exit tuning.
There is no Teletext on this model, although the universal remote control [RM-S04B], currently being supplied by Sony has some Teletext buttons on it.
Cobweb
January 2005