What if I'm afraid to waste my coupon on a converter box I don't like?

A fantastic way to try out a converter box before using your coupon is to buy the box full price first. Then take it home and try it out. If you like it, you can return it for a full refund within the stores return policy time.(usually within 30 days) Then re-purchase the same box again and this time, use your coupon to get your $40 discount. If you don't like it, return it and get your full refund, then buy another box the same way until you find the one you like! Obviously this works best if you want to take the time to try out boxes and if you are not pressured by the 90 day expiration date for your coupon. You could test the boxes before you order your coupon or read the above article explaining how to get more coupons if yours have expired or you need more.