Sears had one of the first operational stores in the SHOP-A-RAMA mall. Its debut day was September 1, 1953.

Advert from Sears, Roebuck & Company

A mall logo from 1954 shows what buildings had been completed.

Graphic from Levitt & Sons

By late 1956, the logo had been revised with a more up-to-date drawing. 

Graphic from Levitt & Sons

LEVITTOWN SHOP-A-RAMA, a.k.a. LEVITTOWN CENTER, the Keystone State's first mall-type shopping hub. It was completed in stages between 1953 and 1955. When fully-realized, the open-air mall incorporated approximately 545,300 leasable square feet and contained over sixty stores and services.

LEVITTOWN SHOP-A-RAMA TENANTS 1956:

POMEROY'S (with Beauty Salon, Children's Barber Shop and Bucks County Room restaurant) / SEARS CATALOG & APPLIANCE (with attached Auto Center ) / FOOD FAIR supermarket / PENN FRUIT supermarket / F.W. WOOLWORTH 5 & 10 (with luncheonette) / S.S. KRESGE 5 & 10 (with luncheonette) / J.C. PENNEY / A.S. Beck Shoes / Adams Clothes / Ajax Cleaners / Ben Franklin Shoe Repair / Bristol Trust Company / Central Record Store / Delaware Valley Bank & Trust Company / Dial Shoes / Doctor Albert D. Weiss, Optometrist / Duval Shoes / Easton News Company / Father & Son Shoes / Hobby Lobby / J. Halpern & Company realty / Joy Hosiery / Karl's Home Furnishings / Kauffman's Paint & Hardware / La Casa Delicatessen / Larmon Camera Shop / Leeds Cleaners / Lerner Shops ladies' wear / Levittown Barber Shop /  Levittown Tavern / Littman's Jewelers / Lobel's Youth Center children's apparel / Lory Bakery / M.L. Atlas Shoes / Malley's Arrow Shirts / Mayflower Shops ladies' wear / Meehan Oil Company auto service center / Penn Fruit Garden & Home Center / Shellenberger's Candy / Singer Sewing Center / Slenderella International figure salon / Suburban Chinese & American Restaurant / Sun Ray Drug (with luncheonette ) / The Cotton Shop ladies' wear / The Hitching Post apparel / The Philadelphia National Bank / Thom McAn Shoes / Towne Theatre (single-screen outparcel) / US Post Office / Vincent & Joseph Beauty Parlor / W.T. Grant (with restaurant) / Wilbur-Rogers ladies' & children's apparel / Wyman Shoes / Yards department store (with Beauty Salon) 

A circa-1956 aerial of the "50-Acre Miracle Shopping City." The parking area of the Delaware Valley complex could accommodate 6,000 autos.
Photo from Malls of America Blogspot