I have a Sony Bravia KDL-46NX700.
I would like to know which settings are right for viewing my mkv (HD,720p) files properly.

1) - Sony can't read mkv, so WMS have to transcode files. Which transcoding profile is correct?? In which way can I set this profile for all mkv files in my DLNA folder??
2) - Mkv have only FORCED subtitles: in which way can I display on tv?? I would like to do that without selecting this option from transcode folder on my TV for each mkv. I would a ultimate option.

3) - Mkv in 1080p go slowly and stopping constantly: why? Maybe is the wrong transcoding profile? Or the connection? I have a 100Mbps lan ADSL.
Thank you!!!