After purchasing a coverter box for $75. at Radio Shack my 65 year old and I found a cheaper converter at Walmart. So we returned the unopen and unused coverter to Radio Shack and Chris the store manager treated us as though we were robbing him of his commission. Telling us we should have gone to Walmart first. Saying he was not required to refund anything to us. WE DID GET OUR REFUND and will never shop at a radio shack again.