While I am sure these are basic questions that have been answered many times, I have been crawling the forum the last two days and haven't found the answers. My R15 No. 1 tuner is failing. The sensitivity is degrading on some channels. I called D* and he recommended subscribe to the protection plan. The rep said I could cancel for free in the first 30 days after that it would cost 10.00 to cancel. In reading the forums I think that I am paying 6.00 a month to save $20 s&h. Is that correct? The second question is whether the USB port on the R15 works like the D10? I watch OTA HD programs on my Mythtv box and would like to record a few D* programs directly to that box. It would be worth the work to craft up the USB-to-Serial cables if it works. I had assumed that I would have to get a D10 to do this but if I can do it with one of my R15s it would be great. Finally, I assume that when I request a replacement it will be another R15. Is there any difference between what I will receive if I order it from D* and pay the S&H or if I am enrolled in PP? Thanks for any clarifications.