[mythtv-users] Issues recording DTV (Comcast via QAM256)

Calvin Dodge caldodge at gmail.com
Thu Feb 25 18:22:31 UTC 2010

I need to start tabulating which shows this happens to, because I've
seen the same phenomena. It happens on both types of digital recorders
(WinTV-HVR-1600 and HDHomeRun), and those are connected to different
computers, so the only common factor appears to be Comcast.

I wonder if the upcoming forced "enhancement" will make this better or worse ...

Calvin Dodge

On Tue, Feb 23, 2010 at 7:43 PM, Ben Kamen <bkamen at benjammin.net> wrote:
> On 2/17/2010 12:17 PM, Ben Kamen wrote:
>> Now that I've had it running for a while, with my signal levels easily >
>> 70% (according to LiveTV) and getting fairly consistent locks:
>> When recording via schedule -- some of the recordings are un-watchable
>> because of DTV artifacts (the look like lost signal/bad tuning w/jumps
>> in time. -- You guys all know).
>> When I watch live TV for that channel, it looks fine. But recording
>> automatically seems to have issues.
>> I've tried setting the preference to one tuner card or the other (I have
>> a pcHDTV-3000 and 5500) to try and rule out either particular card - but
>> that doesn't seem to matter.
>> I'd like to hear thoughts from others if they've had tweaks they've
>> asserted on their systems to fix something similar.
> I thought I would toss out to everyone that today, while NCIS was recording
> on my pcHDTV-3000
> (and I could watch the file enjoying all the skips and broken video/audio) I
> could tune
> to it on my pcHDTV-5500 and watch it live with no problems.
> I've already adjusted (in the past) the preference from recording on the
> 5500 to the 3000 to see
> if that would help and it doesn't seem to make a difference.
> The cards are both set for a tuning delay of 0 and a 2 demux'd channels per
> card.
>  -Ben
> p.s. I record Life Unexpected in HD and it's usually fine (different
> channel).
> Makes me wonder if there's a comcast issue.
> --
> Ben Kamen - O.D.T., S.P.
> =============================================================================
> Email: bkamen AT benjammin DOT net              Web:
> http://www.benjammin.net
> Fortune says:
> Once, there was NO fun ... This was before MENU planning, FASHION
> statements or NAUTILUS equipment ... Then, in 1985 ... FUN was
> completely encoded in this tiny MICROCHIP ... It contain 14,768 vaguely
> amusing SIT-COM pilots!!  We had to wait FOUR BILLION years but we
> finally got JERRY LEWIS, MTV and a large selection of creme-filled
> snack cakes!
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