I noticed this comment on an old post here and this other comment HD Beat claiming that TiVo will announce the Series 3 formally on 9/12 and have it for sale the next day. Both are unsupported rumors that I'd rate up there with year 2000 doomsday predictions, but I'm posting these pointers because I really hope it is true.
I can't find anything solid to back up these claims. I've tried every nook and cranny of the TiVo site... about the only thing linking 9/13 to anything is a speaking appearance by a TiVo exec in NYC, but that's for a mobile media talk, nothing about HD or technology releases.
So, mysterious anonymous commentors, got any goods to back up the claims of 9/12-9/13 Series 3 launches?