Usually you can't. TVs have video inputs but not outputs. You could use an HDMI splitter to drive both the TV and projector from an external source, but anything from the tuner can't be shown on the projector.
Usually you can't. TVs have video inputs but not outputs. You could use an HDMI splitter to drive both the TV and projector from an external source, but anything from the tuner can't be shown on the projector.