I have a master backend with 2 PVR-250s connected to it, and a slave backend which records from an HD HomeRun.<br><br>Now that fall is here with the new TV shows, things are getting busy and I've had a couple situations where I am recording 4 programs at once.<br>
<br>If I'm recording two HD programs only, everything is fine.<br><br>If I'm recording two HD programs plus one SD program, everything is fine.<br><br>If I'm recording two HD programs and two SD programs, the HD programs become extremely glitchy with lots of artifacts and large green blocks and stuttering, only barely watchable and occaisionally completely unwatchable. This seems to start a few minutes after the programs started recording, the first few minutes are fine.<br>
<br>For example on Monday, it recorded Heroes, House, How I Met Your Mother and one other hour long show I forget which. A few minutes into both House and Heroes the recordings became glitchy and this lasted half an hour, until How I Met Your Mother ended.<br>
<br>I suspected it might be something to do with commercial flagging so I went in to mythtv-setup and set it so that it will only flag recordings recorded on the same backend, AND restricted the job queue to run only between midnight and 7:00 PM (avoiding prime-time hours when I'm most likely to be recording that many things), but this didn't help at all.<br>
<br>What I don't really understand is why having the master backend record something affects how the slave backend is doing it's recording if there's no jobs running at the same time (i.e. the slave backend comm flagging something on the master or vice versa).<br>
<br>Also, I have my storage folders setup so that both backends only record to local drives.<br><br>Fortunately most of the shows recorded on the PVRs are on the cable networks and thus have many repeats so for now I can tell it not to record any showing at the same time as two HD recordings but this isn't a good long term solution and doesn't help much with the WAF either :).<br>