The remote control does not work.

Verify that the remote control is in "Cable" mode.

Verify that there are no obstructions between the remote control and the set-top. Aim the remote control directly at the set-top front panel, not the TV or VCR.

The angle between the remote control and the set-top may be too large. Stand in front of the set-top and not too far to either side.

Press and release operation keys one at a time, firmly and deliberately.

Try changing channels using the buttons on the set-top front panel.

Check the batteries in the remote control. Install new batteries if needed.