I've read in another forum about an adapter for your sat receiver that will provide Dolby Digital sound. Are any of you multi-talented participants of this forum familiar with a product of this nature? Been contemplating an upgrade to AC-3, but Tweeter's will not budge on that $350 price. (local Sony factory outlet does'nt carry it yet)Also, I hear a new rcvr is planned with built-in TiVo. So what should I do? Purchase the adapter and wait for the price to drop for the TiVo availability? Will Replay get involved?