I'm using a Connect to switch between TV audio (line-in) and other traditional Sonos sources. I find the minimum 70ms delay on the line-in input to be maddening. While it occasionally works out that audio/video are reasonably sync'd, more times than not the Connect noticeably degrades A/V sync. Additionally, if other televisions are on in adjacent rooms (common occurrence) the delay in the Connect creates an obvious audio sync problem between devices. After having read the forums, etc. I understand some of the technical reasons for the delay; I’m not proposing we violate the laws of space/time. What I am proposing is a dual-mode line-in function. The primary mode would work exactly as it does now (ability to share Connect line-in with all Sonos components). The secondary mode would be a local only mode (no sharing) and would forgo the analog to digital conversion process and simply provide direct analog amplification for the line input. This would completely eliminate the line in delay problem! This may involve a hardware design modification in addition to a software change, but I consider it a must have. I'm fairly new to Sonos (2 months) and the system generally has exceeded my expectations. However, I consider the line-in delay issue a major shortcoming.