Glazer, Irvin R. “Philadelphia Theatres, A-Z.”  New York, Westport, CT, London. Greenwood Press: 1986.  p. 70-71

According to Glazer, the Boyd was the “only Art Deco first-run moving picture theatre erected in the city” of Philadelphia.  In 1963, the Boyd underwent a transition from the three-projector Cinerama system to a single-projector system, though Glazer only mentions the three projection booths being installed.  He also mentions, interestingly, that “when Cinerama product was no longer available, the Boyd had a brief period of porno.”  By A. Migdail

It’s A Mad, Mad, Mad, Mad World was the first movie to play at the Boyd Theater after the removal of the three-lens Cinerama system and its replacement by the single-lens 70mm Cinerama system. Notice that the de-emphasis of the 'Cinerama' from earlier Boyd advertisements.; By A. Migdail

It’s A Mad, Mad, Mad, Mad World was the first movie to play at the Boyd Theater after the removal of the three-lens Cinerama system and its replacement by the single-lens 70mm Cinerama system.  This change is mentioned at the end of the article under the heading “New Technique.”  By A. Migdail