Originally Posted by
FriendlySkies
10/12 UAL291 SFO-IAD B777-200ER (sUA IPTE) - 
I asked during boarding and the FA looked at me like I was speaking another language. He looked pretty new, though I am surprised he didn't know what Channel 9 was.. Another FA heard me asking and said he'd check. He never returned and
it was music the entire flight 
If Channel 9 is silence, does that guarantee it's on but the volume (jumpseat fader) is all the way down? Or are there aircraft where it's not music if switched off? Silence is by far the most common experience for me, although I am but rarely on a Channel 9 equipped a/c.