Sears is a chain of department stores with mail order service from which residents in rural areas such as Hill Valley relied on to order almost any household item.
Back in 1955, Sears had four-year car batteries on sale for $14.95, but were too much for the Peabody family to pay. Sears also sold television sets in 1955. Emmett Brown bought Marty McFly a full outfit and Vaseline hair tonic from Sears to blend in. George McFly had bought attire there in 1981 that he still wore in 1985.