[mythtv-users] mythtv tv recording suddenly grainy / ugly

[Brad DerManouelian]

On Sep 15, 2008, at 11:53 PM, Yeechang Lee wrote:

> Alan <alan at ufies.org> says:
>> So I've had mythtv on an amd 2600 and 2G ram and a hauppage pvr-350
>> running just fine for ages.  I got a loaner new tv (went from a 21"
>> tube to a 52" plasma).  In theory nothing changed in terms of the
>> hardware or the connection method from the pvr to the tv.
>>
>> However now recorded (and live) TV is very ugly and grainy (think
>> really extreme digital noise or high jpeg compression). Playing divx
>> movies show up just fine and nice and sharp.
>
> Your old display was too blurry to display all the imperfections your
> analog standard-definition recordings contain. The Divx AVI files you
> are playing are either created from high-definition sources--whether
> over the air or cable--then illicitly downloaded by you (since you
> obviously don't have any high-definition recording inputs), or ripped
> from DVDs, and are thus of much-higher quality. Get yourself better
> recording methods. Hope that FireWire or clear QAM is available if
> using cable or wait for full support of the Hauppauge HD PVR, and/or
> get an ATSC capture card/HDHomeRun connected to an antenna.

Or crank up your resolution on your PVR-350 until it looks acceptable  
- and don't forget to deinterlace your recordings if you weren't  
before. You've probably just gone from an interlaced display to a  
progressive display.