.mts worked! and the audio was perfect too.
.ts and .mp4 did not work at all.
Unfortunately after so much I found the quality unacceptable though (as compared to playback on my not-so-new laptop). And even compared to playing it via analog composite video straight from the minidv camcorder. Maybe its the encoding quality. I will try better encoding or maybe just good old mpeg2.
Another thing I found frustrating was that when it played the .mts, the tv menu (picture, audio, settings..etc..) was unavailable so couldn't make any picture adjustments either.