As per the research I did over the NET about Lip Sync Problems with HD, I am assuming it is a very needed feature in the receiver.
Can anyone let me know what is the maximum Lip Sync delay (how many milli secs ) that we should be taking care of using a receiver's "Lip Sync Delay" feature ?
Lip synch is an issue, which I think it is best resolved by buying a stand alone digital audio delay unit, which will give you more flexibility, and will let you choose the receiver you like without worrying about it. All recent Yamaha receivers have lip-synch delay built in. The maximum depends on your gear, mine requires 100ms at maximum, but some DVDs can push that limit to 160ms.