I have a 2003 Panasonic Tau Series TV, model # CT-27SL13, a new Magnavox DVDR/VCR, and a satellite tuner. I have connected them using the Magnavox instructions. The instructions then say, "After you have completed the connections, switch the input selector on your TV to an appropriate external input channel." I cannot find this channel. Please help.

Looking at the TV manual at http://www2.panasonic.com/consumer-electronics/support/Televisions/Tau-Series-PureFlat-TVs/model.CT-27SL13:

Try the "TV/VIDEO" button (located above and slightly to the left of the "1" button)