The Toshiba TV/DVD player requires that the channel number selection includes the "dash" symbol, as in 15-1.Our only complaint about this product is that it does not have the "dash" button that the original remote has. If you enter a channel number without the dash, a channel will be displayed, but not always the one you selected. If you press the "Up" arrow, a dash will then be entered and you can make a change to the channel number if necessary.