That file will be streamed directly to your TV without any transcoding by Mezzmo. So, there may be something in the file's encoding that your TV does not like or cannot handle.

One thing to try is to pre-transcode the file to another format and see if that plays OK. Right-click on the file and click 'Pre-transcode File'. Choose your TV from the device list and click Choose Formats. In the Transcoding Formats dialog, select the bolded format and select 'Force full transcode of all channels' checkbox. Click OK and select the 'Pre-transcode files even if they match the device's supported formats'. Click OK and the transcoding will start. Go to the Transcoding pane to see progress. Once transcoding has completed, then try streaming the file to your TV now.