[mythtv-users] Transcoding to 480p

[Brian McEntire]

I have an EDTV that doesn't go to full HDTV specs. It can display 480p, 
720p, and 1080i formats, but it's native resolution is 852x420 so any of the 
other formats are going to be downsampled.

I'm having success recording HDTV over ATSC OTA with MythTV, but playback is 
choppy and I know it is because my computer is currently underpowered. I 
could upgrade, and probably will, but in the mean time, and even after I 
upgrade, there is no reason to have HDTV shows at higher than 480p since 
they need to be downsampled to display on my TV anyway.

Can I save disk space and possibly improve playback performance with 
transcoding? How to I manually and automatically set shows recorded in 1080i 
or 720p to be transcoded down to 480p?

Thanks!
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