You'll find the best prices on Sony receiver parts in Home Theater Systems when you shop online at bizrate. Do all your comparison shopping for Sony Home Theater Systems in one place. Compare models and see which online Electronic stores have the best merchant ratings. Make an informed decision on Sony receiver parts Home Theater Systems before you buy. bizrate will help you with all of your holiday gift shopping needs. Buy Sony HT-DDWG700 5.1 Ch. Home Theater System or Sony HTDDW660 5.1 Ch. Home Theater System.