Roger wrote:
Is it still required to use a secondary provider (such as Schedules Direct) for downloading scheduling information, or can this information be downloaded directly via the ATSC tuner?
I've successfully been using (only) the over-the-air ATSC scheduling data with my HVR-1950 and MythTV for quite some time now. Program titles come through perfectly. (The episode descriptions, however, get mixed around between programs. But as Mike indicates, this is almost certainly a MythTV issue - as I understand it, the pvrusb2 driver just passes the data through as-received.) Schedule forecasting can be a little thin, though. Although my local PBS station gives 3+ days of info, the networks give substantially less - sometimes even less than the FTC mandated 12 hours.
I do believe there is an option for this within MythTV, however, MythTV wiki sites state to use Schedules Direct.
Yeah, it's a bit of a deliberate blindspot on their part. (To the extent that when you have issues with the ATSC schedule information, their first suggestion is to use Schedules Direct. *sigh*) The ATSC scheduling guide still works, though. FYI: the OTA (over the air) ATSC EPG (electronic programming guide) is sometimes called the EIT (event information table) by MythTV.
A final, more pvrusb2-related note: the pvrusb2 driver enforces mutual exclusion between the digital and analog sides, due to hardware constraints. Usually the transition happens seamlessly, but if any program is using the digital tuner *for any reason*, you can't switch to the analog mode for as long as the digital tuner is in use. Scanning for EIT data counts as using the digital tuner. The issue comes if you tell MythTV to use the ATSC EIT info - it will constantly scan the EIT, holding the digital side open. You can turn the EIT scan off, but then updates to the EPG become unreliable. :-)
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