WAV and PCM formats

[fatjulio]

I have MinimServer and MinimStreamer running on a Synology NAS. I'm streaming the music to an older Samsung TV and using Bubble to control it. The tv only accepts mp3 and wav/pcm. The transcoding is working, but none of the different flavours of PCM and wav are being accepted by the tv.
The Synology's built it transcoding is working, it outputs 2 streams, wav and PCM, and the PCM one is being used. I've also got JRiver on a laptop, and that's also successfully sending PCM when used as a library server.
Are there any subtle options with PCM/wav that could be altered? The setting in JRiver says "PCM L16 no header". Their option of "PCM 16 bit" didn't work.

Thanks