Some misinformation there
Wow, that's a whole lot of misinformation in just one post!
1) DLNA certification *does* require minimum format support
-- I'm not for a minute stating that DLNA certification works as it should, but your statement is wrong.
2) Sony TVs do not only support their own formats.
I own two Sony TVs, both of which support over DLNA...
PCM - also known as WAV - not owned by Sony
MP3 - Not owned by Sony
JPEG - Not owned by Sony
MPEG2 - not owned by Sony
AVCHD* - specified by, but not (AFAIK) owned by Sony
* - AVCHD == MPEG2-TS container (not owned by Sony); H264 video (not owned by Sony); AC3 audio (not owned by Sony)
-- And here I will state that the formats that they support over DLNA are the ones that their other devices use, but they are *not* Sony's own formats. I think it can be agreed that the above list is more than the minimal number of formats needed to get DLNA certification.
The information is available on their website:
http://support.sony-europe.com/tutorials/tvhc/dlna/dlna.aspx?site=odw_en_GB&m=KDL-37ex403
I hasten to add that I do not work for Sony, I think that DLNA is in a mess as far as end users are concerned and I agree that Sony's support for formats over DLNA could be a lot better - especially as I have previously mentioned given that they support formats via USB that they do not support via DLNA.