Longitudinal Video Recording
... that Bing Crosby was a key backer in the development of Longitudinal Video Recording in the 1950s?
... that <a href="./Bing_Crosby" id="mwEHk" rel="mw:WikiLink" title="Bing Crosby">Bing Crosby</a> was a key backer in the development of <b id="mwEHo"><a href="./Longitudinal_Video_Recording" id="mwEHs" rel="mw:WikiLink" title="Longitudinal Video Recording">Longitudinal Video Recording</a></b> in the 1950s?