6 channel audio on HDTV?

[Xoemab]

What happens if I play one video that have 6 channels on my home HDTV? I saw some people to make 2 audio tracks, one with 2 channels and one with 6 channels. Is it really necessary?

[Ghitulescu]

Depending on how you will play the file, you may not need any conversion. In fact, you wouldn't need any if you play the file on standalones, the engineers were smart enough to solve this issue.