Proctor's Theater
... that the double balcony of Proctor's Theater in Troy, New York, made it ideal for showing motion pictures when that medium became popular in the 1920s?
... that the double <a href="./Balcony" id="mwGFo" rel="mw:WikiLink" title="Balcony">balcony</a> of <b id="mwGFs"><a href="./Proctor's_Theater_(Troy,_New_York)" id="mwGFw" rel="mw:WikiLink" title="Proctor's Theater (Troy, New York)">Proctor's Theater</a></b> in <a href="./Troy,_New_York" id="mwGF0" rel="mw:WikiLink" title="Troy, New York">Troy, New York</a>, made it ideal for showing <a class="mw-redirect" href="./Motion_picture" id="mwGF4" rel="mw:WikiLink" title="Motion picture">motion pictures</a> when that medium became popular in the 1920s?