OTA Guide Data - How long to populate?

[MrLatte]

I hooked up a used HR10-250 and connected my OTA antenna. I see my "dashed" channels in the guide like 4-1 and 5-1 but the data is only good for a day or two.

There's more data on the regular local channels. Where does the unit get the OTA guide data? Does it take a couple of days to populate?

I think there was residual guide data in this unit since it was connected not long ago but they didn't have my same locals so that data should be new to the device.

[coachO]

Seems like it is less than 48 hours.

[rminsk]

The guide data for all channels including locals come off the satellites. The guide data should be complete within 24 hours and the guide data should be indexed within 48 hours.