Consumer Education: Buyer Be Wise: 1975. From Cassettes Unlimited, Roanoke, TX 76262, series of four color filmstrips each with cassette or 33 1/3 rpm record (manual and automatic signals): Budgets, Batteries, and Bicycles, 59 frames; Supershopper Goes to Market, 65 frames; Health Is A Best Buy, 50 frames; And Now, A Word From Our Sponsor, 51 frames; teacher's guide and script, 20 pp., $15.50 for each filmstrip.