You probably have an BV 7 without HDMI, there is only one digital input, that is the DVI socket. The VGA socket is an output, if you want to have a projector in the ceiling, you can have the same picture on as on your BV7. You need to buy a new monitor with HDMI, today the BV7 has 4 HDMi. Sad to say, but a television without HDMI is almost useless.. HDMI expander is an option, but not a good one.