I am currently capturing HDTV OTA, and am having difficulty conceptualizing the relationship between "scanning for channels" and importing channel info. using Zap2it.<br><br>My assumptions: <br><br>1. mythtv-setup>Input connections>"scan for channels" uses the capture card to scan the airwaves for signals. When it finds a signal, Myth records the information in a .conf file. After the information is obtained, Myth references this .conf file and predisposes the capture card to tune-in a specific channel(s) -- rather than scanning for channels every time a user wishes to watch or record video content.
<br><br>2. The "mythfillmydatabase" command downloads a listing of when and on what channel television programming will occur.<br><br>3. Somehow MythTV cross references the info. obtain from Zap2it "mythfillmydatabase" and From "scan for channels" to facilitate recording.
<br><br>Put another way, the information obtained from "scan for channels" is a list of hardware settings that tune in OTA stations. The information obtained from Zap2it is a list of channel information. These separate databases are indexed together to faciltate viewing and recording.
<br><br>4. However, when using a cablebox one should not use mythtv-setup's "scan for channels" feature. Zap2It's information is used to populate both (all?) databases.<br><br><br><br><br>