yoru right Andyf, the clicks are totally a source thing I just heard the clicks on my Samsung hdtv internals tuner. I'm going to contact the engineer at cbs in Atlanta again. Now if I can get tivo to fix the audio drop outs when first tuning some over the air hd channels I'd be happy. I think its an easy fix by just adding additional delay before the tuner is tuned, like if I tune a hd atsc ota channel and hit pause and wait 1 second then play no drop outs ever. So they just need to add just a little extra buffer before the channel is tuned is my guess. Prob a resrouce issue, like the dropouts people had when scrolling through the guide real fast.