Tvheadend

I did some forum searches and it appears that this is where the EPG data is stored when the option to store is selected. Is there any way to view the contents? I am trying various grabbers and have issues that I do not really understand, and am trying to get some insight.

For example, I have tried over-the-air, Schedules Direct, and now TVmedia. I want to see which one is "the best", though I cannot say what that actually is.

The immediate problem is that the TVmedia listing for one of our local station has no entries until 9:00 pm tonight, but I know there is programming scheduled all day and can view what is being broadcast. And if I download the TVMedia xml externally from the terminal window, I can see the entries in the xml for the full day. I would like to see what tvheadend thinks it has to work with.