Cool lists of codes, thanks! According to one of those pages, though, most of the backdoor codes don't work on the DirecTivo.

One thing I looked for, but couldn't find, was something to control the amount of skip in the 30-second-skip feature. When I use the feature, it works as advertised, skipping exactly 30 seconds. But by the time I skip the correct number of commercials, my delay in starting the skip and my delay between skips makes it add up to greater than an even multiple of 30. So I land somewhere about 5-10 seconds into the feature when I'm done. I'd like to see if a 29 second skip works better, for example. Anyone know if this can be done?