[FFmpeg-user] yuv420p vs yuv420p(tv)

[George R. Welch]

Hi folks,

I have two versions of the same video and I would like to only keep 
one.  If one is higher quality, I'd obviously want to keep that one.  I 
can't tell tell any difference through casual watching with VLC, so 
perhaps it does not matter.

But anyway, when I run ffmpeg -i on the two, the difference is:

<     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 
1920x1080, 4011 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc (default)
---
 >     Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), 
yuv420p(tv), 1920x1080 [SAR 1:1 DAR 16:9], 4173 kb/s, 29.97 fps, 29.97 
tbr, 90k tbn, 59.94 tbc (default)

I think I understand the difference between yuv420p(pc) and yuv420p(tv), 
but here I have yuv420p vs yuv420p(tv).

Can someone offer suggestions as to which of these two videos might be 
the better encoding?

Thanks,

--George