Most DVD players have a pinhole looking thing on the front of the system for just such an occasion. Place a bent or unbent paper clip tip into the hole, and it should open the unit. They place that hole there so you can retrieve your DVD if the power is out, or if the unit fails.

A pen tip is not long enough to reach in there. it must be a bit longer, like the paper clip trick. I find once the tray is open, it will work normally again. Sometimes it just needs to be opened to retrigger its memory.

Good job! btw, if you are seeing the Magnavox screen on whatever channel, you know that IS the right place to view the movie.

PLEASE unplug the unit BEFORE sticking things in any places. A good hard push with the clip will normally pop the door open.