Digital converter quality question

To verify that the converter box receives more stations than your Insignia, move the converter to the living room. Remove the antenna coax from the TV and connect it to the converter. Connect the video out from the converter to the video in of the TV and check that you can still receive the same channels that you tuned in the bedroom. If the converter can not receive some of the channels, this would indicate that the signal in the living room is lower than the the signal in the bedroom. If you can still receive all the signals that you tuned in the bedroom, this would indicate that the tuner in the converter is indeed more sensitive than the tuner in the Insignia.