Ok this is a wierd one so lets see if you guys can bail me out. I have two Tivo Premiers. Both were attached directly to the TV and the sound effects the Tivo makes when you issue commands worked fine (the little tones for selecting channels and things like that). So I buy an AV receiver a few months ago, hook it up and bingo sound effects are gone. I try to get it back and no luck. TV shows all have sound fine, just no Tivo sound effects. After trying to fix for weeks I give up. But another AV receiver this weekend, hook it up and BAM again no sound effects. Do AV receivers somehow filter the sound effects? Anyone else have this problem?!?!?